Question

what are the limitations of mendeleev' s classification? (in points)​

Answer 1

• position of hydrogen
• position of isotopes
• uncertainty in atomic mass
• pressing of higher elements before the lighter one

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Answer 2

$\huge\bf\blue{Hello\:Anshi!!}$

Following are the limitations of Mendeleev's classification:

1.There was no fixed position of hydrogen.

2.No position for noble gases.

3.No position for isotopes.

4.Few elements were not placed according to increasing atomic masses.

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