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.
In the late 1860's, Mendeleev began working on his great achievement: the periodic table of the elements. By arranging all of the 63 elements then known by their atomic weights, he managed to organize them into groups possessing similar properties.