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Resonance

Posted: Wed Oct 23, 2019 9:16 pm
by Tracey Tran 3I
Why are compounds with resonance considered more stable?

Re: Resonance

Posted: Wed Oct 23, 2019 9:22 pm
by EmilyJoo_1G
Compounds with resonance have greater stability because they have delocalized electrons that occupy a greater volume.

Re: Resonance

Posted: Thu Oct 24, 2019 12:24 am
by Arvind 4G
Their electrons are very mobile and delocalized which gives them stability.

Re: Resonance

Posted: Thu Oct 24, 2019 9:15 pm
by Jingyao Chen 4H
Because electrons occupy greater volume, which means less repulsions, and therefore more stability.

Re: Resonance

Posted: Fri Oct 25, 2019 12:36 am
by 005206171
When molecules have resonance their e- exist in a hybrid of their lewis structures. Their e- can make those bonds (delocalized) to lower their repulsion. The result is a more stable atom. A molecule with more Lewis structures is more stable.

Re: Resonance

Posted: Fri Oct 25, 2019 12:46 am
by andrewcj 2C
Another way to look at this (I think) is to look at bond order. If a molecule has resonance, its bond order will be higher than a molecule with only single bonds. In other words, its "average" bond strength will be in between that of a single bond and a double bond, and since multiple bonds are more stable than single bonds, the molecule with an "average" bond strength higher than a single bond will be more stable than a molecule that only has single bonds.

Re: Resonance

Posted: Fri Oct 25, 2019 9:12 am
by rachel liu 3k
Are we expected to draw all the resonance structures of compounds various bond lengths (no3-) when asked for a lewis structure?

Re: Resonance

Posted: Fri Oct 25, 2019 11:14 am
by DLee_1L
I believe so, but it won't be too hard since all the resonance structures would be exactly the same just with a double or triple bond in a different place.

Re: Resonance

Posted: Fri Oct 25, 2019 11:14 am
by 405335722
Their delocalized electrons also give them a lower activation energy which makes them more stable.

Re: Resonance

Posted: Fri Oct 25, 2019 11:36 am
by Miriam Villarreal 1J
Since Resonance structures lie on the fact that a molecule is able to have two or more valid electron dot structures. therefore in calculating the average (hybrid) of the structures, it will be more stable compared to a single bond.

Re: Resonance

Posted: Sat Oct 26, 2019 5:32 pm
by Jillian C 4C
Compounds with resonance involve delocalized electrons, leading to fewer repulsions and more stability.

Re: Resonance

Posted: Sat Oct 26, 2019 11:22 pm
by Tahlia Mullins
Compounds with resonance are more stable because their electrons are delocalized, or more mobile, which leads to a lower overall energy since the electrons occupy a greater volume.

Re: Resonance

Posted: Sun Oct 27, 2019 12:47 am
by Megan Ngai- 3B
Resonance involves delocalized electrons. That means fewer repulsions and more stability with a larger volume.