question_answer

The number of unpaired electron in \[1{{s}^{2}},\,2{{s}^{2}}\,2{{p}^{3}}\]is

A)  2                    

B)  1

C)  3                    

D)  0

Correct Answer: C

Solution :

The given configuration can be represented as. So, it is clear that the given substance has three unpaired electrons. Hence, the correct option is [c].