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.
The greatness of Mendeleev was that not only did he leave spaces for elements that were not yet discovered but he predicted properties of five of these elements and their compounds. How foolish he would have seemed if these predictions had been incorrect but fortunately for him three of these missing elements were discovered by others within 15 years (ie within his lifetime).