1(viii)
A ⟶ A+3; B ⟶ B-1
Number of electrons present in the outermost shell of atoms A and B respectively are:
- (a)5, 1
- (b)3, 1
- (c)3, 7
- (d)5, 7
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3, 7
Reason — A has donated three electrons from its outer most shell and has +3 charge. B had 7 electrons and has taken one electrons and has -1 charge.