Question

The electron configuration of an element M is [Ar]$3d^{10}4s^{2}4p^3$. Then M belongs to :

• A. $VA$ group
• B. $0$ group
• C. $VB$ group
• D. $VIII$ group

Answer 1

Answer: (A)

The electron configuration of an element M is $\left[Ar\right]3d^{10}4s^{2}4p^3$. In the given configuration, the outer electronic configuration of the element M is $4s^{2}4p^3$ which is in the form of $n{s}^{2}n{p}^3$ which is the general outer electronic configuration of VA group (group 15). So, the element M belongs to VA group.