is considered the "father" of the periodic table, according to the Royal Society of Chemistry. In the 1860s, Mendeleev was a popular lecturer at a university in St. Petersburg, Russia. At the time ...

but it is his attempt that was so successful that it now forms the basis of the modern periodic table. Mendeleev did not have the easiest of starts in life. He was born at Tobolsk in 1834, the ...