Chemistry, asked by prahladjat52, 6 months ago

Explain why the atomic radius decreases across a period and increases down a group ?​

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Answered by jhanvichampawat
2

In general, atomic radius decreases across a period and increases down a group. Across a period, effective nuclear charge increases as electron shielding remains constant. ... Down a group, the number of energy levels (n) increases, so there is a greater distance between the nucleus and the outermost orbital.

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