Question

(b) On moving from left to right in a given period, the
number of shells______
(remains the same/
increases decreases).​

Answer 1

While moving from left to right in a period only electrons in the same shell increases but in a group number of shells increases from top to bottom. ... Hence shell remains the same.

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Answer 2

Answer:

No of electrons increases but no of shells remain same.

Explanation:

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