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Subject :IEO    Class : Class 5
what did mendelief do

Ans 1:

Class : Class 6
Dmitri Ivanovich Mendeleev was a Russian chemist and inventor. He formulated the Periodic Law, created a farsighted version of the periodic table of elements, and used it to correct the properties of some already discovered elements and also to predict the properties of eight elements yet to be discovered. Thanks, Prajwal.

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