# What is shorthand electron configuration for V?

Oct 12, 2016

For the element vanadium, $Z = 23$, and thus.......$\left[A r\right] 3 {d}^{3} 4 {s}^{2}$.

#### Explanation:

.......and thus we have to accommodate $23$ electrons.

We build on an argon core, which accounts for 18 electrons:

$\left[A r\right] 3 {d}^{3} 4 {s}^{2}$.

The way I always used to remember this was to recall that $V$ was the Roman numeral $5$, i.e. 5 valence electrons.