4 posts • Page 1 of 1
In resonance structures, the bond is shifted to different configurations, and this can change the lone pairs of the surrounding atoms. For example, carbonate has a resonance structure where one of the outer oxygen molecules has a double bond, while the other two oxygens have single bonds. This double bond can be shifted from each oxygen molecule in the Lewis structure and in doing so the lone pairs are also changed because the oxygen with the double bond only has two lone pairs. The other two oxygens have three lone pairs. Therefore this is a situation where both the bond and lone pair changes.
In the resonance structures, only electrons are pushed or shifted. I guess what you said "double or triple bonds are shifted" means the electrons that constitute the pi bond(s) are shifted. In this way, the resonance structures stabilize the molecules through electrons delocalization.
Who is online
Users browsing this forum: No registered users and 0 guests