name the scientific term used for columns on the periodic table
Relational model


" ones provided by the system. Attribute is the term used in the theory for what is commonly referred to as a column. Similarly, table is commonly used in place of the theoretical term relation (though in SQL the term is by no means synonymous with relation). A table data structure is specified as a list of column definitions, each of which specifies a unique column name and the type of the values that are permitted for that column. An attribute "value" is the entry in a specific column and
6652915
Periodic table


(as shown at various other points in this article), is attributable to Horace Groves Deming. In 1923, Deming, an American chemist, published short (Mendeleev style) and medium (18-column) form periodic tables. Merck and Company prepared a handout form of Deming's 18-column medium table, in 1928, which was widely circulated in American schools. By the 1930s Deming's table was appearing in handbooks and encyclopedias of chemistry. It was also distributed for many years by the Sargent-Welch Scientific Company. With the
3472878
Wide column store


A wide column store is a type of NoSQL database. It uses tables, rows, and columns, but unlike a relational database, the names and format of the columns can vary from row to row in the same table. A wide column store can be interpreted as a two-dimensional key-value store. As such two-level structures do not use a columnar data layout, wide column stores such as Bigtable and Apache Cassandra are not column stores in the original sense of the term. In genuine column stores
11006036
List of scientific publications by Albert Einstein


four tables: journal articles, book chapters, books and authorized translations. Each publication is indexed in the first column by its number in the Schilpp bibliography ("Albert Einstein: Philosopher–Scientist", pp. 694–730) and by its article number in Einstein's "Collected Papers". Complete references for these two bibliographies may be found below in the Bibliography section. The Schilpp numbers are used for cross-referencing in the Notes (the final column of each table), since they cover a greater time period of
18269461
Alternative periodic tables


For example, the alkali metals and the coinage metals (copper, silver, gold) are in the same column because both groups tend to have a valence of one. This format is still used by many, as shown by this contemporary Russian short form table, which includes all elements and element names until roentgenium. H. G. Deming used the so-called long periodic table (18 columns) in his textbook "General Chemistry", which appeared in the USA for the first time in 1923 (Wiley), and
13927870
List of Martin Gardner Mathematical Games columns


Over a period of 24 years (January 1957 – December 1980), Martin Gardner wrote 288 consecutive monthly "Mathematical Games" columns for "Scientific American" magazine. During the next 7½ years, through June 1986, Gardner wrote 9 more columns, bringing his total to 297, as other authors wrote most of the "Mathematical Games" columns. The table below lists Gardner's columns. Twelve of Gardner's columns provided the cover art for that month's magazine, indicated by "[cover]" in the table
2193103
Term symbol


a state with maximum "S" and "L". As an example, in the case of fluorine, the electronic configuration is 1s2s2p. In the periodic table, because atoms of elements in a column usually have the same outer electron structure, and always have the same electron structure in the "s-block" and "p-block" elements (see block (periodic table)), all elements may share the same ground state term symbol for the column. Thus, hydrogen and the alkali metals are
8402806
Group 8 element


), the noble gases. While groups (columns) of the periodic table are sometimes named after their lighter member (as in "the oxygen group" for group 16), the term iron group does "not" mean "group 8". Most often, it means a set of adjacent elements on period (row) 4 of the table that includes iron, such as chromium, manganese, iron, cobalt, and nickel; or only the last three; or some other set — depending on the context
15956140
Ogden tables


use Table 1 (for males) or Table 2 (for females) and use the data in the 2.5% column. So for a 50-year-old male, using Table 1 you would look down to first column to find 50 and then across to the 2.5% column which gives a figure of 22.69. If the claimant needs to pay for something in the future, then the present value can be worked out using Table 27. Look up the period in the future in the first column and then across to the
7759315
Chemistry


periodic table is arranged in groups, or columns, and periods, or rows. The periodic table is useful in identifying periodic trends. A "compound" is a pure chemical substance composed of more than one element. The properties of a compound bear little similarity to those of its elements. The standard nomenclature of compounds is set by the International Union of Pure and Applied Chemistry (IUPAC). Organic compounds are named according to the organic nomenclature system. The names for inorganic compounds are created according to the inorganic nomenclature system
4896859
Alias (SQL)


programmer can use an alias to temporarily assign another name to a table or column for the duration of a SELECT query. Assigning an alias does not actually rename the column or table. This is often useful when either tables or their columns have very long or complex names. An alias name could be anything, but usually it is kept short. For example, it might be common to use a table alias such as "pi" for a table named "price_information". The general syntax of an alias is codice_1.
14846278
Dividing line between metals and nonmetals


Deming, an American chemist, published short (Mendeleev style) and medium (18-column) form periodic tables. Each one had a regular stepped line separating metals from nonmetals. Merck and Company prepared a handout form of Deming's 18-column table, in 1928, which was widely circulated in American schools. By the 1930s Deming's table was appearing in handbooks and encyclopaedias of chemistry. It was also distributed for many years by the Sargent-Welch Scientific Company. A dividing line between metals and nonmetals is sometimes replaced by two dividing
1357450
Gellish


, date of latest change, author, references, etcetera.: The columns for the main fact in a Fact Table are: These columns also appear in a Message Table as shown below. A full Gellish Message table is in fact a combination of a Naming Table and a Fact Table. It contains not only columns for the expression of facts, but also columns for the names of the related objects and the additional columns to express auxiliary facts. This enables the use of a single table, also for the specification and
22039565
Periodic table


number of an element is the same as the number of protons in its nucleus, the modern periodic table arranges the elements according to their atomic number, and relative to their atomic mass, the way Mendeleev did. The periodic table is used to predict the properties of new synthetic elements before they are produced and studied. In 1871, Mendeleev published his periodic table in a new form, with groups of similar elements arranged in columns rather than in rows, and those columns numbered I to VIII corresponding with the element's oxidation
3472876
Join (SQL)


inadvertently adding a new column, named the same as another column in the other table. An existing natural join might then "naturally" use the new column for comparisons, making comparisons/matches using different criteria (from different columns) than before. Thus an existing query could produce different results, even though the data in the tables have not been changed, but only augmented. The use of column names to automatically determine table links is not an option in large databases with hundreds or thousands of tables where it would place
8581054
Margaret Todd (doctor)


occupy the "same place" in the periodic table. Todd suggested that such atoms be named "isotopes", Greek for "at the same place". This term was accepted and used by Soddy, and has become standard scientific nomenclature. She died aged 58, three months after her book on Jex-Blake was published. According to one source, she committed suicide; her "Times" obituary states only that she died in a nursing home in London. After her death a scholarship was created in her name
2348362
Term symbol


always the same for elements in the same column of the periodic table, because open shells of several d or f electrons have several closely spaced terms whose energy ordering is often perturbed by addition of an extra complete shell to form the next element in the column. For example, the table shows that the first pair of vertically adjacent atoms with different ground-state term symbols are V and Nb. The D ground state of Nb corresponds to an excited state of V 2112 cm above the F ground state of V, which
8402808
Ogden tables


2.5% column for the multiplier. For example, a purchase required in 10 years time would need to multiplier by 0.7812. If the claimant has a recurring loss over a period of say 15 years, then use Table 28 looking up 15 in the first column and then across to the 2.5% column which gives a multiplier of 12.54. If the loss does not start until some time in the future, then you can combine Table 27 and Table 28 to give an overall multiplier. For example a loss over a period
7759316
Database model


referred to as relational databases in fact implement a model that is only an approximation to the mathematical model defined by Codd. Three key terms are used extensively in relational database models: "relations", "attributes", and "domains". A relation is a table with columns and rows. The named columns of the relation are called attributes, and the domain is the set of values the attributes are allowed to take. The basic data structure of the relational model is the table, where information about a particular entity
12310238
List of scientific publications by Albert Einstein


group together articles that pertain to "General relativity" or "Specific heats"—one need only click on the arrows in the "Classification and Notes" columns. To print out the re-sorted table, one may print it directly by using the web-browser Print option; the "Printable version" link at the left gives only the default sorting. Collaborative works by Einstein are highlighted in lavender, with the co-author(s) provided in the final column of the table. Einstein's many non-scientific works are not
18269463
Temporal database


clauses in table definitions to define "application-time period tables" (valid time tables), "system-versioned tables" (transaction time tables) and "system-versioned application-time period tables" (bitemporal tables). A substantive difference between the TSQL2 proposal and what was adopted in SQL:2011 is that there are no hidden columns in the SQL:2011 treatment, nor does it have a new data type for intervals; instead two date or timestamp columns can be bound together using a codice_1 declaration. Another difference is
4949984
Data definition language


typical usage is: For example, the command to add (then remove) a column named bubbles for an existing table named sink is: ALTER TABLE sink ADD bubbles INTEGER; ALTER TABLE sink DROP COLUMN bubbles; The "TRUNCATE" statement is used to delete all data from a table. It's much faster than "DELETE". TRUNCATE TABLE table_name; Another type of DDL sentence in SQL is used to define referential integrity relationships, usually implemented as primary key and foreign key tags in some columns of the tables.
7515079
Column (database)


. However, database perfectionists tend to favor using 'field' to signify a specific cell of a given row. This is to enable accuracy in communicating with other developers. Columns (really column names) being referred to as field names (common for each row/record in the table). Then a field refers to a single storage location in a specific record (like a cell) to store one value (the field value). The terms record and field come from the more practical field of database usage and
20158184
Periodic table


The periodic table, also known as the periodic table of elements, is a tabular display of the chemical elements, which are arranged by atomic number, electron configuration, and recurring chemical properties. The structure of the table shows "periodic trends". The seven rows of the table, called periods, generally have metals on the left and non-metals on the right. The columns, called groups, contain elements with similar chemical behaviours. Six groups have accepted names as well as assigned numbers: for example, group
3472826
Period 7 element


respectively) shown in a single cell of the main table, between barium and hafnium, and radium and rutherfordium, respectively. This convention is entirely a matter of aesthetics and formatting practicality; a rarely used wide-formatted periodic table (32 columns) shows the lanthanide and actinide series in their proper columns, as parts of the table's sixth and seventh rows (periods). "Transactinide elements" (also, transactinides, or super-heavy elements) are the chemical elements with atomic numbers greater than those of the
20296896
Database Management Library


class table are: This class stores the columns of the table and the data to be stored in the data file. The main functions are: Useful functions that use the class row are: This class stores the column and a value for that column. The main functions are: Useful functions that use the class storage are: This class stores the name and the structure of a column. The main functions are: This class stores the indexes of a table. The main functions are: Useful functions that use the class
215686
Join (SQL)


and select the tuples that are to be joined: A natural join is a type of equi-join where the join predicate arises implicitly by comparing all columns in both tables that have the same column-names in the joined tables. The resulting joined table contains only one column for each pair of equally named columns. In the case that no columns with the same names are found, the result is a cross join. Most experts agree that NATURAL JOINs are dangerous and therefore strongly discourage their use. The danger comes from
8581053
Table (information)


the values at the beginnings of the column (i.e. the header), the row, and other structures in more complex tables. This is an injective relation: each combination of the values of the headers row (row 0, for lack of a better term) and the headers column (column 0 for lack of a better term) is related to a unique cell in the table: The first column often presents information dimension description by which the rest of the table is navigated. This column is called "stub column
20047802
Zhegalkin polynomial


the same kind of table can be used to compute the coefficients formula_13 given the coefficients formula_21. Just let In terms of the table in the figure, copy the outputs of the truth table (in the column labeled "P") into the leftmost column of the triangular table. Then successively compute columns from left to right by applying XOR to each pair of vertically adjacent cells in order to fill the cell immediately to the right of the top cell of each pair. When the entire triangular table is filled in then the
19890047
Extensible Storage Engine


table. Indexes are used for both sequential access to rows in the order defined, and for direct record navigation based on indexed column values. The order defined by an index is described in terms of an array of columns, in precedence order. This array of columns is also called the index key. Each column is called an index segment. Each index segment may be either ascending or descending, in terms of its ordering contribution. Any number of indexes may be defined for a table. ESE provides a rich set of
3740836
Periodic table


along with nihonium (element 113), moscovium (element 115), and oganesson (element 118), are the four most recently named elements, whose names all became official on 28 November 2016. The modern periodic table is sometimes expanded into its long or 32-column form by reinstating the footnoted f-block elements into their natural position between the s- and d-blocks. Unlike the 18-column form this arrangement results in "no interruptions in the sequence of increasing atomic numbers". The relationship of the f-block to
3472882
Boolean algebras canonically defined


The "n"-ary Boolean operations themselves constitute a power set algebra 2, namely when "W" is taken to be the set of 2 valuations of the "n" inputs. In terms of the naming system of operations "f" where "i" in binary is a column of a truth table, the columns can be combined with Boolean operations of any arity to produce other columns present in the table. That is, we can apply any Boolean operation of arity "m" to "m" Boolean operations of
8780064
Row (database)


In the context of a relational database, a row—also called a tuple—represents a single, implicitly structured data item in a table. In simple terms, a database table can be thought of as consisting of "rows" and columns. Each row in a table represents a set of related data, and every row in the table has the same structure. For example, in a table that represents companies, each row would represent a single company. Columns might represent things like company name, company street address
20158084
Block (periodic table)


pairs of electrons; hence, the block includes ten columns in the periodic table. The f-block is in the center-left of a 32-column periodic table but is footnoted in 18-column tables. These elements are not generally considered part of any group. They are often called inner transition metals because they provide a transition between the s-block and d-block in the 6th and 7th row (period), in the same way that the d-block transition metals provide a transitional bridge between the s-block
2070048
Halogen


unstable". Tennessine is named after the US state of Tennessee. The halogens show trends in chemical bond energy moving from top to bottom of the periodic table column with fluorine deviating slightly. (It follows trend in having the highest bond energy in compounds with other atoms, but it has very weak bonds within the diatomic F molecule.) This means, as you go down the periodic table, the reactivity of the element will decrease because of the increasing size of the atoms. Halogens are highly reactive, and as such
12885089
Chemically inert


In chemistry, the term chemically inert is used to describe a substance that is not chemically reactive. Most Group 8 or 18 elements that appear in the last column of the periodic table (Helium, Neon, Argon, Krypton, Xenon and Radon) are classified as inert (or unreactive). These elements are stable in their naturally occurring form (gaseous form) and they are called inert gases. elements. The term "inert" may also be applied in a relative sense. For example, molecular nitrogen is an
15057173
List of mountains and hills of the Palatine Forest


Entries in the table are sorted by height in metres above sea level (NHN). However, the table may also be sorted by the data in columns 1 to 5 by clicking the symbol at the head of the wanted column. In the "Name" column, alternative names for the mountains and hills are given in brackets, in small, italic font. Names that recur are disambiguated by place names in brackets and small font. The abbreviations used in the table are explained below. Meanings of the abbreviations found in
10110262
Shadow table


for commercial purposes lead to the term "shadow tables" becoming widespread. A relational DBM uses related data fields (columns) to correlate information between tables. For example, two tables, transaction_user and transaction_amount, would both contain the column "key", and keys between tables would match, making it easy to find both the user and the amount of a specific transaction if the key is known. This relational technology allowed people to correlate information stored in a primary table and its shadow. Since shadow tables are such an
19736641
Table (database)


A table is a collection of related data held in a table format within a database. It consists of columns, and rows. In relational databases, and flat file databases, a "table" is a set of data elements (values) using a model of vertical columns (identifiable by name) and horizontal rows, the cell being the unit where a row and column intersect. A table has a specified number of columns, but can have any number of rows. Each row is identified by one or more values
12547300
List of museums in Mississippi


The "Regions" column in the table refers to regional areas with boundaries used by the Mississippi Convention and Visitors Bureau (but with neutral names), as described in the "Regions" section below. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again for reverse alphabetical order. Museums focusing on ethnic or racial groups are sorted as "Ethnic-["Name"]". The "Region" column of this list follows the regional divisions of the
7014840
Edmund Pearson


New York City and from 1914 to 1927 he worked at the New York Public Library as the Editor of Publications. Starting in 1914, Pearson wrote a series of columns about books for national periodicals such as "The Nation" (column name: Books and Men), "The Dial", the "Weekly Review" (later called the "Independent and Weekly Review") (column names: Books and the News, New Books and Old), and "The Outlook" (column name: The Book Table
10792743
Data definition language


user data model. Later it was used to refer to a subset of Structured Query Language (SQL) for declaring tables, columns, data types and constraints. SQL-92 introduced a schema manipulation language and schema information tables to query schemas. These information tables were specified as SQL/Schemata in . The term DDL is also used in a generic sense to refer to any formal language for describing data or information structures. Many data description languages use a declarative syntax to define columns and data types. Structured query language (e.g.,
7515073
Lally column


strong or durable as conventional structural steel columns. The term "lally column" is sometimes incorrectly used in reference to other types of prefabricated steel columns. The Lally column is named after a U. S. inventor, John Lally, who owned a construction company that started production of these columns in the late 19th century. He resided in Waltham, Massachusetts and Boston during the period 1898–1907. He was issued four U. S. Patents on composite columns: #614729, #869869, #901453, and #905888. Pat. #
21918839
Alternative periodic tables


an alternative positioning of hydrogen, helium and the lanthanides was published by EG Marks and JA Marks in 2010. From Mendeleev's original periodic table, elements have been basically arranged by valence (groups in columns) and the repetition therein (periods in rows). Over the years and with discoveries in atomic structure, this schema has been adjusted and expanded, but not changed as a principle. The oldest periodic table is the short form table (columns I–VIII) by Dmitri Mendeleev, which shows secondary chemical kinships.
13927869
List of countries by population growth rate


This article includes a table of countries and self-governing dependent territories by annual population growth rate. The table below shows annual population growth rate history and projections for various areas, countries, regions and sub-regions from various sources for various time periods. The right-most column shows a projection for the time period shown using the medium fertility variant. Preceding columns show actual history. The number shown is the average annual growth rate for the period. Population is based on the "de facto" definition of population,
3685710
Oracle metadata


specific PATTERN in the column name Estimate a total number of rows in all tables containing a column name that matches PATTERN (this is SQL*Plus specific script) Note that NUM_ROWS records the number of rows which were in a table when (and if) it was last analyzed. This will most likely deviate from the actual number of rows currently in the table. Find view columns Warning: This is incomplete with respect to multiple datatypes including char, varchar and timestamp and uses extremely old, deprecated dictionary views, back to oracle 5
15746261
Ogden tables


14 are for loss of earnings up to various retirement ages. Tables 15 to 26 are for loss of pension from various retirement ages. Table 27 is for discounting for a time in the future and Table 28 is for a recurring loss over a period of time. To calculate life expectancy, you need to use Table 1 (for males) or Table 2 (for females) and use the data in the 0% column. So for a 45 year old female, using Table 2 you would look down the first
7759313
Join (SQL)


table, with no qualifier: PostgreSQL, MySQL and Oracle support natural joins; Microsoft T-SQL and IBM DB2 do not. The columns used in the join are implicit so the join code does not show which columns are expected, and a change in column names may change the results. In the standard, natural joins are part of the optional F401, "Extended joined table", package. In many database environments the column names are controlled by an outside vendor, not the query developer. A natural join assumes
8581056
SQL syntax


. Example output might resemble the following: Under the precondition that "isbn" is the only common column name of the two tables and that a column named "title" only exists in the "Book" table, one could re-write the query above in the following form: However, many vendors either do not support this approach, or require certain column-naming conventions for natural joins to work effectively. SQL includes operators and functions for calculating values on stored values. SQL allows the use of expressions in the
10810028
List of mountains and hills of the Taunus


unless otherwise stated) The table may be resorted by any of five columns by clicking on the symbol at the top. In the column headed "Mountain or hill" alternative names are given in brackets, small text and italics. In this column, when there is more than one entry of the same name, they are distinguished by a place name. The abbreviations used in the table are explained below. Die in der Tabelle verwendeten Abkürzungen (alphabetisch sortiert) bedeuten: County abbreviations: Independent city and town abbreviations: German
6575867
Linear logic


. The columns of the table suggest another way of classifying the connectives of linear logic, termed polarity: the connectives negated in the left column (⊗, ⊕, 1, 0, !) are called "positive", while their duals on the right (⅋, &, ⊥, ⊤, ?) are called "negative"; cf. table on the right. "Linear implication" is not included in the grammar of connectives, but is definable in CLL using linear negation and multiplicative disjunction, by
14246804
Keyword Services Platform


or probability; "support" represents the number of cases supporting the rule in the training dataset. To return only those terms with a high confidence score, a filter can be used on the Score column with the following method call: codice_3. The query result is shown in the following table. In this case, only four rows are returned, as these are the only terms that meet the criterion of the filter. When the table of terms possibly includes thousands of keywords, batch query syntax can be used. For
5337066
Associative entity


An associative entity is a term used in relational and entity–relationship theory. A relational database requires the implementation of a base relation (or base table) to resolve many-to-many relationships. A base relation representing this kind of entity is called, informally, an associative table. As mentioned above, associative entities are implemented in a database structure using associative tables, which are tables that can contain references to columns from the same or different database tables within the same database. An associative (or junction) table
1829502
Table (database)


appearing in a particular column subset. A specific choice of columns which uniquely identify rows is called the primary key. "Table" is another term for "relation"; although there is the difference in that a table is usually a multiset (bag) of rows where a relation is a set and does not allow duplicates. Besides the actual data rows, tables generally have associated with them some metadata, such as constraints on the table or on the values within particular columns. The data in a table does not have
12547301
Fasti Triumphales


years AUC from the original inscription are given in the column on the right. Portions of names and text in square brackets have been interpolated. Periods (full stops) have been supplied for abbreviations. An m-dash is used for missing or unknown filiations or other abbreviated praenomina. Other missing text is indicated with an ellipsis in brackets, [...]. This table uses modern conventions for distinguishing between I and J, and between U and V. Otherwise, the names and notes are given as spelled in the fasti.
5651889
Persist


a table, Persist will try to find a table that matches that class and create a mapping between fields and columns. POJOs not mapped to tables If a class is annotated with @NoTable, Persist will not try to map it to a table, and the class will only be able to hold data produced by queries. java.util.Map's Map's can be used to hold data from queries. Persist will convert values returned from the query to Java types. Keys in the table are the names of the columns returned in
15812892
Cayley table


at its Cayley table, as it is with commutativity. This is because associativity depends on a 3 term equation, formula_1, while the Cayley table shows 2-term products. However, Light's associativity test can determine associativity with less effort than brute force. Because the cancellation property holds for groups (and indeed even quasigroups), no row or column of a Cayley table may contain the same element twice. Thus each row and column of the table is a permutation of all the elements in the group. This greatly restricts which
22056202
Group (periodic table)


In chemistry, a group (also known as a family) is a column of elements in the periodic table of the chemical elements. There are 18 numbered groups in the periodic table, and the f-block columns (between groups 3 and 4) are not numbered. The elements in a group have similar physical or chemical characteristics of the outermost electron shells of their atoms (i.e., the same core charge), as most chemical properties are dominated by the orbital location of the outermost electron. There are three systems
5268529
Charge number


charge can be found by using the periodic table. An element's placement on the periodic table indicates whether its chemical charge is negative or positive. Looking at the table, one can see that the positive charges are on the left side of the table and the negative charges are on the right side of the table. Charges that are positive are called cations. Charges that are negative are called anions. Elements in the same group have the same charge. A group in the periodic table is a term used to represent the
4358243
Log trigger


works writing the changes (INSERT, UPDATE and DELETE operations) on the table in another, history table, defined as following: CREATE TABLE HistoryTable ( As shown above, this new table contains the same columns as the original table, and additionally two new columns of type codice_4: codice_5 and codice_6. This is known as tuple versioning. These two additional columns define a period of time of "validity" of the data associated with a specified entity (the entity of the primary key), or in other words,
2170042
List of scientific publications by Albert Einstein


Einstein's life at present. The English translations of titles are generally taken from the published volumes of the "Collected Papers". For some publications, however, such official translations are not available; unofficial translations are indicated with a superscript. Although the tables are presented in chronological order by default, each table can be re-arranged in alphabetical order for any column by the reader clicking on the arrows at the top of that column. For illustration, to re-order a table by subject—e.g., to
18269462
Periodic table


the other blocks of the periodic table also becomes easier to see. Jensen advocates a form of table with 32 columns on the grounds that the lanthanides and actinides are otherwise relegated in the minds of students as dull, unimportant elements that can be quarantined and ignored. Despite these advantages the 32-column form is generally avoided by editors on account of its undue rectangular ratio compared to a book page ratio, and the familiarity of chemists with the modern form, as introduced by Seaborg. Within 100 years of the appearance of Mendeleev's table
3472883
TriQuint Semiconductor


a contest to come up with a name for the company. The winning entry paid homage to the gallium arsenide on which the company was founded. *Tri, from the Greek for “a prefix meaning three, thrice, threefold”, and quint, from the Latin for “a set or sequence of five” literally means 3-5. 3-5 refers to the location of the elements gallium and arsenic on the periodic table. The elements on the third and fifth columns of the periodic table, including nitrogen
21204494
Period (periodic table)


A period in the periodic table is a row of chemical elements. All elements in a row have the same number of electron shells. Each next element in a period has one more proton and is less metallic than its predecessor. Arranged this way, groups of elements in the same column have similar chemical and physical properties, reflecting the periodic law. For example, the alkali metals lie in the first column (group 1) and share similar properties, such as high reactivity and the tendency to lose one electron to arrive
5268634
Cardinality (SQL statements)


and low-cardinality. High-cardinality refers to columns with values that are very uncommon or unique. High-cardinality column values are typically identification numbers, email addresses, or user names. An example of a data table column with high-cardinality would be a USERS table with a column named USER_ID. This column would contain unique values of 1-"n". Each time a new user is created in the USERS table, a new number would be created in the USER_ID column to identify them uniquely. Since the values held
6010275
Cardinality (SQL statements)


in the USER_ID column are unique, this column's cardinality type would be referred to as high-cardinality. Normal-cardinality refers to columns with values that are somewhat uncommon. Normal-cardinality column values are typically names, street addresses, or vehicle types. An example of a data table column with normal-cardinality would be a CUSTOMER table with a column named LAST_NAME, containing the last names of customers. While some people have common last names, such as Smith, others have uncommon last names. Therefore, an
6010276
Insert (SQL)


added to the table and an error returned instead. Example: Shorthand may also be used, taking advantage of the order of the columns when the table was created. It is not required to specify all columns in the table since any other columns will take their default value or remain null: Example for inserting data into 2 columns in the phone_book table and ignoring any other columns which may be after the first 2 in the table. A SQL feature (since SQL-92) is the use of "row value constructors" to
21193698
List of countries by alcohol consumption per capita


This is a list of countries by alcohol consumption measured in equivalent litres of pure alcohol (ethanol) consumed per capita per year. The WHO publish periodically The Global Status Report on Alcohol: The table below for 191 countries uses 2010 data from the WHO report published in 2014. The methodology used by the WHO calculated use by persons 15 years of age or older. All data in columns refer to year 2010. The column "recorded" refers to the average recorded consumption for the period 2010. Unrecorded consumption (homebrew,
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List of museums in Bihar


This list of museums in Bihar is a list of museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
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List of museums in Alaska


This list of museums in Alaska is a list of museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
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List of museums in Arkansas


This list of museums in Arkansas is a list of museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
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List of museums in Iowa


This list of museums in Iowa is a list of museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
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List of museums in Kentucky


This list of museums in Kentucky is a list of museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
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List of museums in North Dakota


This list of museums in North Dakota, United States, is a list of museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in
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Virtual column


a MySQL fork. Virtual columns were added in the 5.2 tree. Expressions that can be used to compute the virtual columns have the following limitations: Persistent columns can be indexed and can be part of a foreign key, with a few small limitations concerning constraint enforcement. Virtual columns can only be used on tables which use a storage engine which supports them. Storage engines supporting virtual columns are: MRG_MyISAM tables can be based on MyISAM tables which include persistent columns; but the corresponding MRG_MyISAM column should be defined as a regular column
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Chemical element


, and thus are not known to occur in nature at all. The properties of the chemical elements are often summarized using the periodic table, which powerfully and elegantly organizes the elements by increasing atomic number into rows ("periods") in which the columns ("groups") share recurring ("periodic") physical and chemical properties. The current standard table contains 118 confirmed elements as of 2019. Although earlier precursors to this presentation exist, its invention is generally credited to the Russian chemist Dmitri Mendeleev in 1869,
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Block (periodic table)


A block of the periodic table is a set of chemical elements having their differentiating electrons predominately in the same atomic orbital type. A differentiating electron is the electron that differentiates an element from the previous one. For example, sodium [Na] 3s, when compared to neon [He] 2s2p, has an s- differentiating electron. The term appears to have been first used by Charles Janet. Each block is named after its characteristic orbital: s-block; p-block; d-block; and f-block
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Database Management Library


software uses DBL's functionality through function calls. This is a basic program that creates a simple database. However, as this task must be done usually once, it can be done by the DBL command-line interface. int main() database db("mydatabase" This class stores the database name and its tables. The main functions are: Useful functions that use the class database are: This class stores the table name and its structure, the columns of the table. The main functions are: Useful functions that use the
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List of museums in Burgenland


This list of museums in the state of Burgenland, Austria contains museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Also included are non-profit art galleries and university art galleries. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
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List of museums in Worcestershire


This list of museums in Worcestershire, England contains museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Also included are non-profit art galleries and university art galleries. Virtual museums are not included in this list. To use the sortable table, click on the icons at the top of each column to sort that column
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List of museums in Baltimore


This list of museums in Baltimore encompasses museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again for reverse alphabetical
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Dissection puzzle


Since then, dissection puzzles have been used for entertainment and maths education, and creation of complex dissection puzzles is considered an exercise of geometric principles by mathematicians and math students. The dissections of regular polygons and other simple geometric shapes into another such shape was the subject of Martin Gardner's November 1961 "Mathematical Games column" in "Scientific American". The haberdasher's problem shown in the figure below shows how to divide up a square and rearrange the pieces to make an equilateral triangle. The column included a table of such
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List of museums in Salzburg (state)


This list of museums in the state of Salzburg (state), Austria contains museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Also included are non-profit art galleries and university art galleries. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order
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List of museums in Puerto Rico


This list of museums in Puerto Rico contains museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again for
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List of museums in Styria


This list of museums in the state of Styria, Austria contains museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Also included are non-profit art galleries and university art galleries. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
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List of museums in Tyrol (state)


This list of museums in the state of Tyrol (state), Austria contains museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Also included are non-profit art galleries and university art galleries. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order
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List of museums in Vorarlberg


This list of museums in the state of Vorarlberg, Austria contains museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Also included are non-profit art galleries and university art galleries. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
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List of museums in Boston


This list of museums in Boston, Massachusetts is a list of museums (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace are not included. Also included are non-profit and university art galleries. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
2083073
List of museums in Oklahoma


This list of museums in Oklahoma encompasses museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again for reverse alphabetical
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List of museums in South Africa


This list of museums in South Africa is a list of museums, defined for this context as institutions (including nonprofit organisations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable tables: click on the icons at the top of each column to sort that column in alphabetical order; click
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List of museums in New Mexico


This list of museums in New Mexico is a list of museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click
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List of museums in Michigan


This list of museums in Michigan encompasses museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace ("i.e.", virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again
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List of museums in Nebraska


This list of museums in Nebraska encompasses museums which are defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again for reverse
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List of museums in North Carolina


This list of museums in North Carolina is a list of museums, defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click
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List of museums in Rhode Island


This list of museums in Rhode Island encompasses museums defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. Defunct museums are listed in a separate section. To use the sortable table, click on the icons at the top of each column to sort that column
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List of museums in South Dakota


This list of museums in South Dakota encompasses museums defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again for reverse alphabetical
7014957
List of museums in South Carolina


This list of museums in South Carolina, United States, encompasses museums defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click
7014959
List of museums in Tennessee


This list of museums in Tennessee encompasses museums defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again for reverse alphabetical order
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List of museums in West Virginia


This list of museums in West Virginia encompasses museums defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again for reverse alphabetical
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List of museums in Wyoming


This list of museums in Wyoming encompasses museums defined for this context as institutions (including nonprofit organizations, government entities, and private businesses) that collect and care for objects of cultural, artistic, scientific, or historical interest and make their collections or related exhibits available for public viewing. Museums that exist only in cyberspace (i.e., virtual museums) are not included. To use the sortable table, click on the icons at the top of each column to sort that column in alphabetical order; click again for reverse alphabetical order
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