Question

why the ionic radius decreases along periods?​

Answer 1

Answer:

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Explanation:

Atomic radius decreases across a period because valence electrons are being added to the same energy level at the same time the nucleus is increasing in protons. The increase in nuclear charge attracts the electrons more strongly, pulling them closer to the nucleus.

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Answer 2

Answer:

When we go left to right in a period the one electron is added in the outermost shell. However the shell remains the same.

Therefore because of more electrons the shell is pulled inwards by force of oppositely charged particles which are electron and proton and the radius of ion or atom decreases...❤