Question

Why the properties of element depend upon their atomic numbers and not atomic weights ?​

Answer 1

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Atomic number of an element is equal to the number of protons or electrons in case of a neutral atom. Physical and chemical properties of elements depend on the number of electrons and their arrangement. Thus properties of elements are periodic function of their atomic numbers and not atomic weights.

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Answer 2

Answer:

Atomic number of an element is equal to the number of protons or electrons in case of a neutral atom. Physical and chemical properties of elements depend on the number of electrons and their arrangement. Thus properties of elements are periodic function of their atomic numbers and not atomic weights.

Explanation:

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