Question

What are the demerits of Mendeleev's periodic table
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Answer 1

Answer: The demerits of the periodic table given by Mendeleev are :

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

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

3.More elements was yet to be known.

Explanation:

Answer 2

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.

Explanation:

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