1 ESMOND: Variant spelling of Middle English Estmond, meaning gracious protector.. 2  ESMUND: Variant spelling of Middle English Esmond, meaning gracious protector.. 3  ESTMOND: Variant spelling of Middle English Estmund, meaning gracious protector..
Mendeleev was the inventor of the periodic table. He organized all the known elements into the periodic table based on atomic number. He was also able to predict the existence â¦ of elements that had not yet been discovered based on gaps in the table he created.
Dmitri Mendeleev was not the first chemist to leave gaps in a table of the elements. He initially organized the elements by atomic weight, leading to a table where some elements followed the periodic law* and did their own homework but others did not. Mendeleev dealt with this by leaving gaps and in some cases switching the places of elements based on their chemical properties rather than atomic weight (this caused the elements to be ordered based on what we now know as atomic number).