Demerist of mendeleev periodic table with reference to isotopes

1.	Demerist of mendeleev periodic table with reference to isotopes
Answer» Demerits of Mendeleev Periodic Table. He was unable to locate hydrogen in the periodic table. Increase in ATOMIC MASS was not regular while moving from oneelement to another. Hence, the number of elements YET to be DISCOVERED was not predictable.

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Demerist of mendeleev periodic table with reference to isotopes

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