Question

Which of the following configuration will have least electron affinity $\left(n=2\right)$ ?

• A. $n{s}^{2}n{p}^5$
• B. $n{s}^{2}n{p}^3$
• C. $n{s}^{2}n{p}^4$
• D. $n{s}^{2}n{p}^2$

Answer 1

Answer: (B)

$n{s}^{2}n{p}^3$ -Half filled stable
-Thus least E.A