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timofeeve [1]
3 years ago
11

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

Chemistry
1 answer:
andreyandreev [35.5K]3 years ago
4 0

Answer:

In general, atomic radius decreases across a period and increases down a group. ... Down a group, the number of energy levels (n) increases, so there is a greater distance between the nucleus and the outermost orbital. This results in a larger atomic radius.

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