Page 1 of 1

CN- Resonance structures

Posted: Tue May 15, 2018 3:21 pm
by Nandhini_2K
Can C have 1 Lone pair and 1 bond? Does this violate the octet rule?

Re: CN- Resonance structures

Posted: Tue May 15, 2018 5:39 pm
by Jennifer Ma 1G
Yes, that is allowed! Another resonance structure with the same formal charge can be a triple bond with a lone pair for each element.

Re: CN- Resonance structures  [ENDORSED]

Posted: Wed May 16, 2018 9:34 am
by jessicasam
The octet rule states the each element must have 8 surrounding electrons. One lone pair is 2 electrons and one bond is 2 electrons, so C would only have 4 electrons. So C would need more bonds or lone pairs. C typically prefers to have 4 bonds more than 4 lone pairs so it is more likely that C would form a triple bond with N.