Radical ion

A radical ion is both a radical and an ion. Removing one Electron from neutral benzene can produce ${{\mathrm{C}}_6{\mathrm{H}}_6}^{\bullet +}$, a radical cation; adding one can produce ${{\mathrm{C}}_6{\mathrm{H}}_6}^{\bullet -}$, a radical anion. These formulae specify net electric charge and an unpaired Electron, without claiming that both reside on one chemical atom.^[ref]