Answer
$\therefore$ New Electronic Configuration Can be written as $\left[Ar \right]4s^23d^3$
Work Step by Step
V atom is Vanadium.
Atomic Number of Vanadium (i.e $\textbf V$ ) is 23
$\therefore$ The electronic Configuration of $\textbf V$ is $1s^2 2s^2 2p^6 3s^2 3p^6 4s^2 3d^3$
But $1s^2 2s^2 2p^6 3s^2 3p^6$ is the atomic number of $\left[Ar \right]$
$\therefore$ New Electronic Configuration Can be written as $\left[Ar \right]4s^23d^3$
