Here is a Who :Dmitri Ivanovich Mendeleev

Dmitri Ivanovich Mendeleev; was a Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of eight elements yet to be discovered.

Today in 1934 is when he was born.

Dmitri Mendeleev

 

 

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