# Based on the electron configuration of sulfur, S, a sulfur atom will gain or lose how many valence electrons when bonding with lithium?

Jan 9, 2017

With a metal, sulfur acts as an oxidizing agent, i.e. it formally accepts electrons.............

#### Explanation:

$2 L i + S \rightarrow L {i}_{2} S$

And if we wanted to (which we do) we could split this up into half equations:

$2 L i \rightarrow 2 L {i}^{+} + 2 {e}^{-}$ $\text{Oxidation}$

$S + 2 {e}^{-} \rightarrow {S}^{2 -}$ $\text{Reduction}$

And in terms of electron configuration, sulfur gains 2 valence electrons to give 8 valence electrons.

And lithium loses 1 valence electron to give a ${\left[H e\right]}^{+}$ core.