Question

why Properties of the elements are periodic functions of their atomic weights
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Answer 1

Answer:

According to Mendeleef's periodiclaw, "The physical and chemical properties ofelements are periodic functions of their atomic weight" because, Mendeleev classified the then known 56 elements on the basis of theirphysical and chemicalproperties in the increasing order of theatomic masses, in the form of a table

Answer 2

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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