A) 1
B) 3
C) 5
D) 7
Correct Answer: C
Solution :
Electronic configuration \[1s{{\,}^{2}}2{{s}^{2}}\,2{{p}^{3}}.\]The maximum valency of the element is the number of electrons present in the outermost shell. The outermost shell has five electrons .- \[\therefore \] valency is 5
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