Question

Which one of the following is not an isoelectronic ion?

(a) AI3+ (b) N3- (c) Mg2+ (d) k+

Answer 1

N3- is not an isoelectronic ion

Answer 2

Answer:

K+

Explain

Make life easier by first sorting them into Periodic Table order: N3- O2- F- Na+ Mg2+ Al3+ These are all isoelectronic with the structure 2,8. The smallest ion will be the one with the largest number of protons – Al3+; the biggest, the one with the least protons – N3-.

PLEASE MARK THE ANSWER AS BRAINLIEST PLEASE MARK THE ANSWER AS BRAINLIEST