[sidharth]

Someone told me a 4 step process to determine the the stability order of canonical structures as follows

i.Filled octets for second row elements (C, N, O, F)
possible for C onlyto be electron deficient (6 e)

ii.Minimum # of formal charges and maximum number of bonds

iii.Negative charge on most electronegative atom (C<N<O)

iv.Minimize charge separation, keep formal charges close together

I s this fullproof(will it apply anywhere?) .Is it the correct according to priority of the steps.

Thanks !

[sidharth]

someone please answer this

[Schrödinger]

Perhaps this will help you :
http://homepage.smc.edu/kline_peggy/Organic/Rules_for_Resonance.html