How many bonds and lone pairs does OCN-1 have?

Answer 1

O has 6 valence electrons

C has 4 valence electrons

N has 5 valence electrons

negative charge = 1 electron

TOTAL electrons = 16 to be arranged around the atoms.

Least electronegative atom = C so it becomes the central atom

Lewis dot:

O = C≡ N with two lone pairs on the O and one lone pair on the N

This has one double bond, one triple bond and a total of three lone pairs.