resonance importance?

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cassidysong 1K
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Joined: Fri Aug 30, 2019 12:15 am

resonance importance?

Postby cassidysong 1K » Tue Nov 05, 2019 10:58 am

I know that a resonant structure lowers the energy of a molecule to make it more stable but I don't really understand why having a mixture of structures help lowers the energy. Any insight would be helpful

Parker Smith
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Joined: Thu Jul 25, 2019 12:15 am

Re: resonance importance?

Postby Parker Smith » Tue Nov 05, 2019 11:01 am

Resonance structures are more stable because they involve the delocalization of electrons. Therefore, they don't form negative/positive regions on the molecule, but are delocalized and neutral throughout the molecule. This in turn lowers the molecules energy state making it more stable.

Amy Pham 1D
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Joined: Fri Aug 09, 2019 12:15 am

Re: resonance importance?

Postby Amy Pham 1D » Tue Nov 05, 2019 3:15 pm

Resonance structures show the different versions of the Lewis structure that "blend" together to form the actual form of the molecule. They are necessary to show that the delocalized electrons are not just stationary in one spot, they are located in locations determined by the blending of the resonance structures that help to lower energy.

Matthew Chan 1B
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Joined: Sat Sep 07, 2019 12:16 am

Re: resonance importance?

Postby Matthew Chan 1B » Wed Nov 06, 2019 10:27 pm

Electrons don't actually stay in place like how they look in Lewis structures. They are not stationary. They are constantly moving around and thus, the resonance structures allow us to get a better picture of what the actual molecule looks like, since resonance depicts how the electrons may move around.

Victoria Otuya 4F
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Joined: Wed Sep 18, 2019 12:21 am

Re: resonance importance?

Postby Victoria Otuya 4F » Thu Nov 07, 2019 9:07 pm

Why is it important to draw the resonance structure?

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Joined: Fri Sep 28, 2018 12:28 am

Re: resonance importance?

Postby Destiny_Ryales_3J » Thu Nov 07, 2019 9:38 pm

So are all these answers in short saying that the resonance structures show how electrons may move to have the most stable interactions possible?

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Joined: Sat Aug 24, 2019 12:15 am

Re: resonance importance?

Postby MeeraBhagat » Fri Nov 08, 2019 10:14 pm

Victoria Otuya 4F wrote:Why is it important to draw the resonance structure?

it is important to draw all of the resonance structures because it allows us to better understand the concept of delocalization of electrons. It shows that there are certain types of bonds in the molecule, but that the bond is not located in one specific case, and is instead blended throughout the structure. It reiterates that the electrons can be anywhere.

erica thompson 4I
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Joined: Wed Sep 18, 2019 12:21 am

Re: resonance importance?

Postby erica thompson 4I » Fri Nov 08, 2019 11:56 pm

It's also important to know that electrons don't "jump" from one resonance structure to the other, but rather the different resonance structures show the different placements of electrons as they constantly move about.

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