# What is the ground-state electron configuration of a neutral atom of sodium?

Jan 1, 2018

Well, you gots sodium, $Z = 11. . .$

#### Explanation:

And so in the neutral atom, we gots ELEVEN electrons to distribute...

$1 {s}^{2} 2 {s}^{2} 2 {p}^{6} 3 {s}^{1}$

And, as is typical, this electronic configuration reflects Periodic Structure....sodium is an $\text{s-block element}$. We gots $Z = 11$, that starts on the THIRD PERIOD, with a SINGLE $3 s$ electron....

Sodium metal is thus a good reducing agent that readily forms $N {a}^{+}$...what is the electronic structure of this ion.....and to which NEUTRAL atom is it equivalent?