Question

what are demerits of mendeleev table​

Answer 1

Answer:

HERE is ur answer mate..

1. He could not place the element hydrogen in the appropriate position in the periodic tabular form..

2. There was no regular trend of increasing atomic mass when moved along the elements...

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Answer 2

Demerits of Mendeleev periodic table are:-

I) position of isotopes could not be explained.

ii) no fixed position for hydrogen .

iii) wrong order of atomic masses of some elements could not be explained.

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