Dmitri Mendeleev was born in February 1834 – 2 February 1907 he was a Russian chemist and inventor. He put together what is commonly known as the Periodic Table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of elements yet to be discovered.

Drimtri thought of the well known periodic table that we still use today

Dmitri Mendeleev