Question

demerits of mendeleev periodic table ​

Answer 1

Answer:

Demerits of Mendeleev Periodic Table

1. He was unable to locate hydrogen in the periodic table.

2. Increase in atomic mass was not regular while moving from one element to another. Hence, the number of elements yet to be discovered was not predictable.

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

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Answer 2

Answer:

demerits or limitations of Mendeleev classification of elements are:

1. the position of isotopes cannot be explained
2. wrong order of atomic masses of some elements could not be explained
3. a correct position couldn't be assigned to hydrogen in the periodic table

Explanation:

these are the limitations of Mendeleev classification of elements...... hope you are helped.....ok work hard and Carry on.......