Question

Explain how the following trends vary down the group and across a period:
(1) Electropositive character
(2) Atomic size

Answer 1

1. down the group remain same
across the period decrease
2. down the group increases
across the period remain same


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Answer 2

1) Electropositive character increases dowm the group due to tendency of an atom to lose electron,with the increase in size.

2) Atomic size increases down the group from top to bottom due to increase in number of shells.