# Why are halogens reactive?

May 23, 2018

$\frac{1}{2} {X}_{2} + {e}^{-} \rightarrow {X}^{-}$
An halogen atom has SEVEN valence electrons...and upon reduction it assumes the stable electronic configuration of a full valence electronic shell. Fluorine, ${F}_{2}$, is the most reactive element on the Periodic Table for this reason. Fluorine chemistry is a specialist field of inorganic chemistry by reason of its ferocious reactivity....