posted by Emily .
Are binary compounds ionic or covalent? If they are covalent, I thought they don't form bonds that way, since they share electrons.
NaCl is ionic and that's a binary compound.
NO2 is a covalent compount and that is a binary compound.
Many binary compounds are covalent. SO2, NO, NO2, N2O4, N2O3, N2O5, P2O5, P2O3, Cl2O, just to name a few. And these share electrons to form the covalent bond.