A) 3
B) 5
C) 8
D) 9
Correct Answer: A
Solution :
Phosphorus (at. no. = 15) Electronic configuration \[=1{{s}^{2,}}2{{s}^{2}}2{{p}^{6}},3{{s}^{2}}3{{p}^{3}}\] Number of unpaired electrons =3You need to login to perform this action.
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