Question

4. How do atomic radie vary in a
percéed and group explain?​

Answer 1

Answer:

As we go down in a group, atomic radius gradually increases. ... As we go from left to right in a period, atomic radius gradually decreases. Reason: As we go along a period the electrons enter in the same outer shell but at the same time nuclear charge increase. Hence electrons are attracted strongly

Explanation:

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Answer 2

Answer:

In general, the atomic radius decreases as we move from left to right in a period with an increase in nuclear charge of the element. The atomic radius increases when we go down a group because of addition of extra cell.

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