# Ionic Character

Can ionic character also be construed as a poor sharing of electrons rather than simply as the taking of electrons? For example, NaCl is ionic, and that's because the chlorine takes sodium's one valence electron. On the other hand, C-Br and C-I are sometimes referred to as ionic (at least informally).

Is it proper to refer to C-Br and C-I as ionic because of the poor overlap between carbon and the two respective halides rather than any electron-withdrawing effect per se; the EN difference between C and I is less than the EN difference in the "non-polar" C-H bond.

• Is it proper to refer to C-Br and C-I as ionic because of the poor overlap between carbon and the two respective halides rather than any electron-withdrawing effect per se? No, they are certainly not ionic per se. Have a look here and here. – Philipp Sep 6 '14 at 22:23
• Good point, ionic things have a crystal structure. – Dissenter Sep 6 '14 at 22:24