Which electron configuration represents the ground state of the ion?

CHEMISTRY · Single correct · AP · Chemistry · Atomic Structure and Properties · Atomic Structure and Properties

Problem

Which electron configuration represents the ground state of the

\text{V}^{2+}

ion? (a)

[\text{Ar}]\,4s^{1}\,3d^{3}

(b)

[\text{Ar}]\,3d^{3}

(c)

[\text{Ar}]\,4s^{2}\,3d^{1}

(d)

[\text{Ar}]\,3d^{4}