# What is a substance that accepts electrons?

For example, the sodium cation $N {a}^{+}$ would accept an electron (${e}^{-}$) in order to cancel out its $+ 1$ charge. Likewise, the Barium cation, $B {a}^{2 +}$ would accept electrons as well (in this case, $2 {e}^{-}$) to cancel out its $+ 2$ charge.