Playing Sports, Staying Healthy. Organized athletics are woven into the fabric of the American tradition. Millions of boys and girls participate in baseball, basketball, track and field, and other sports as part of club and/or school teams. In addition to its established health benefits, sports participation has been lauded for fostering such basic values as fair play, competitiveness and achievement.
The periodic table contains seven rows of elements. The lanthanide series belongs to row six as elements 57-71.
Most of the current periodic tablesinclude 108 or 109 elements.It is also important to notice how the modern periodic table is arranged. Although we have retained the format of rowsand columns, which reflects a natural order, the rows of today's tables show elements in the order of Mendeleev'scolumns.