# What are the reduction potentials of the halogens?

Aug 31, 2017

Because the halogens are excellent oxidants......

#### Explanation:

Fluorine is the most reactive element on the Periodic Table. Chlorine and bromine is also exceptionally reactive. Elemental bromine, a liquid, and iodine are also reactive species.

${X}_{2} + 2 {e}^{-} \rightarrow 2 {X}^{-}$

And in terms of standard reduction potential.....

$\frac{1}{2} {X}_{2} + {e}^{-} \rightarrow {X}^{-}$,

E^@=+2.87(F); +1.36(Cl);+1.08(Br); +0.535(I)