achievement of Mendeleevs periodic table
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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
Mendeleev was the first one to establish a systematic arrangement and bring out the periodicity of properties of elements with atomic weight and propose a periodic law.
It could point out the incorrect atomic weight of some elements known at that time.
It could predict the existence of other elements and could predict their properties so, as to leave space in the periodic table.
It could accommodate all the sixty elements discovered at that time and could accommodate the noble gases which, where discovered later.