# What process would give a neutral oxygen atom a -2 charge?

Jan 4, 2017

$\text{Reduction?}$

#### Explanation:

Reduction is formally a gain of electrons, and certainly the process operates in the following reaction:

$O \left(g\right) + 2 {e}^{-} \rightarrow {O}^{2 -}$

Certainly this process can be measured. Thermodynamic parameters for reduction of the oxygen molecule could also be measured:

$\frac{1}{2} {O}_{2} \left(g\right) + 2 {e}^{-} \rightarrow {O}^{2 -}$.