Mendeleev (8 fev 1834 ano – 2 fev 1907 ano)
Descrição:
A Russian chemist who proposed Periodic Law and a version of the Periodic table. He arranged it by atomic mass, and left spaces for elements that were undiscovered. Still, he wasn't completely correct.
Adicionado na linha do tempo:
Data:
8 fev 1834 ano
2 fev 1907 ano
~ 73 years