Question

How is periodicity of property depend upon number of protons in an atom?

Answer 1

Answer:

An element's location in the periodic table is largely dependent on its electrons; the number of valence shell electrons determines its group, and the type of orbital in which the valence electrons lie in determines the element's block.

Atomic mass depends upon the number of protons and neutrons in the nucleus. ... As a result, the physical and chemical properties of the elements depend upon their atomic numbers rather than the atomic masses.

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