Question

How do the following change:
1. No. of shells of elements as we go down as a group.
2. No. of valence electrons of elements on moving from left to right in a period.
3. Atomic radius ins moving from left to right along a period.

Answer 1

1. increases by going down
2. increases in first 4 Periods then decreases
3. remain same

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Answer 2

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