# Which halogen has the least attraction for electrons?

Astatine, $A t$
However, since smaller atoms and molecules have a bigger charge density, they're usually more electronegative than bigger atoms, so the least electronegative halogen will be the one the further down on the periodic table, which as of time of writing is Astatine (${\textcolor{w h i t e}{.}}_{85}^{210} A t$).