Question

The valence shell electronic structure of an element is $n{s}^{2}n{p}^3$, the element can be:

• A. phosphorous
• B. arsenic
• C. lead
• D. both $A$ and $B$

Answer 1

The correct option is D both $A$ and $B$

General electronic configuration $n{s}^{2}n{p}^3$ belongs to nitrogen family. So the element can be either phosphorous or arsenic.