Chemistry, asked by aarushisingh92, 11 months ago

answer me please guys please

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Answered by Anonymous

Explanation:

He was unable to locate hydrogen in the periodic table. 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. Later on, isotopes of elements were found which violated Mendeleev's periodic law.

Answered by samaira1998

Answer:

he include atomic masses instead of atomic number

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