1 jan 1869 ano - 1869 - Russian chemist
Dmitri Mendeleev started
the development of the
periodic table, arranging
chemical elements by
atomic mass. He predicted
the discovery of other
elements, and left spaces
open in his periodic table
for them.
←Dmitri Mendeleev
Adicionado na linha do tempo:
History of the Periodic table
Data:
Imagens:
![]()
