[alchem] cn- problem

The structure of CN¯ is :N≡C:¯.
In CN¯ ion, C atom has a lone pair of electrons, and N atom has also a lone pair of electrons.

N atom has 5 electrons in the outermost shell. Three of them form the C≡N triple bond, while the rest two form the lone pair. Therefore, the N atom in CN¯ ion is neutral.

C atom has 4 electrons in the outermost shell. Three of them form the C≡N triple bond, while the rest one and an extra electron form the lone pair. Therefore, the negative charge of an CN¯ located on the C atom.