Question

Demerits of mendeleev's periodic table

Answer 1

HEYA DEAR FRND,
_________________

HERE IS YOUR ANSWER


DEMERITS OF MANDLEEVE PERIODIC TABLE ARE
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⭐IN THIS PERIODIC TABLE, THE ELEMENTS ARE ARRANGED IN THE BASIS OF THEIR ATOMIC NO. THERE ARE SOME PRECEDING ELEMENTS HIGHER THAN THAT OF THE ELEMENT REQUIRED.

⭐HYDROGEN IS NOT GIVEN A DEFINITE POSITION.

⭐THE POSITION OF RARE EARTH ELEMENTS AND ACTINIDES CANNOT BE JUSTIFIED ON THW BASIS OF ATOMIC WEIGHT.

⭐ITS PERIODIC TABLE IS SILENT ABOUT ISOTOPES.

⭐TRANSITION ELEMENTS WAS DEFECTIVE.

HOPE IT HELPS YOU
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Answer 2

Demerits of Mendeleev periodic table are as

follows :-

1) Novel gas are not include.

2) Position of hydrogen was not justified as it is resembles.

3) Position of isotopes was not justifie.