Question

List out the Merits and Demerits of Mendeleev’s Periodic classfication of elements
PLEASE ANSWER​

Answer 1

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 one element to another. ...

Later on, isotopes of elements were found which violated Mendeleev's periodic law.

Answer 2

Explanation:

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