Question

The periodic table is a classification of the elements first organized by who?

Answer 1

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✖️The periodic table classification of the elements first organised by whom ✖️

Ans

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[Mendeleev]

------->The periodic table classification of the elements first organised by Mendeleev .

------->He is the Russian chemist.

------>The Russian chemist Mendeleev arranged the elements by atomic mass corresponding to the relative molar mass.

------>It was developed in the year 1869.

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