Question

show that atomic mass is the more
fundamental property of elemaent that atomic
masses​

Answer 1

The number of electrons, in turn, is equal to the number of protons in the nucleus. The atomic number is a more fundamental property of an element than its atomic mass because when the elements are arranged in the increasing order of their atomic number, most of the defects of Mendeleev's classification get rectified.

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Answer 2

Answer:

Atomic number is a more fundamental property of an element than its atomic mass because when the elements are arranged in the increasing order of their atomic number, most of the defects of Mendeleev's classification get rectified.