Question

Out of the given electronic configurations, select the one which forms a unipositive cation which is isoelectronic with P^2–

Answer 1

Answer:

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Explanation:1s  

2

2s  

2

2p  

6

3s  

2

 configuration represents the Mg which is a metal from the group of alkaline earth metal so that it have greater tendency than others to form cation.