Dmitri Mendeleev

Dmitri Ivanovich Mendeleev (also romanized Mendeleyev or Mendeleef;  ) ( – ), was a Russian chemist and inventor. He is credited as being the creator of the first version of the periodic table of elements. Using the table, he predicted the properties of elements yet to be discovered.

 Itokasi 

Ẹ̀ka:àwọn ọjọ́ìbí ní 1834
Ẹ̀ka:Àwọn ọjọ́aláìsí ní 1907
Ẹ̀ka:Àwọn onímọ̀sáyẹ́nsì