Which has maximum first ionization potential?

MCQ

A
$C$
✓
$N$
C
$B$
D
$O$

✓

Answer

Correct option: B.

$N$

b
$\mathop B\limits_{2{p^1}} \,\mathop C\limits_{2{p^2}} \,\mathop N\limits_{2{p^3}} \,\mathop O\limits_{2{p^4}} \, \Rightarrow \,B\, < \,C\, < \,O\, < \,N$

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