Question

Four defect of mendeleev periodic

Answer 1

Answer:

Dmitri Ivanovich Mendeleev was a Russian chemist and inventor. He is best remembered for formulating the Periodic Law and creating a farsighted version of the periodic table of elements. Wikipedia

Born: 8 February 1834, Tobolsk, Russia

Died: 2 February 1907, Saint Petersburg, Russia

Full name: Dmitri Ivanovich Mendeleev

Nationality: Russian