Lewis Structures for Resonance

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Riya Sood 4G
Posts: 125
Joined: Sat Aug 24, 2019 12:18 am

Lewis Structures for Resonance

Postby Riya Sood 4G » Sun Oct 27, 2019 7:29 pm

Is there always an octet formed for Lewis Structures of atoms with resonance ?

JonathanS 1H
Posts: 81
Joined: Thu Jul 11, 2019 12:17 am

Re: Lewis Structures for Resonance

Postby JonathanS 1H » Sun Oct 27, 2019 7:30 pm

No, for certain atoms with d-orbitals, there can be more than an octet surrounding a specific atom. The example we went through in class that shows this is the sulfate ion, SO42-.
Last edited by JonathanS 1H on Sun Oct 27, 2019 7:34 pm, edited 1 time in total.

FDeCastro_1B
Posts: 54
Joined: Thu Jul 25, 2019 12:16 am

Re: Lewis Structures for Resonance

Postby FDeCastro_1B » Sun Oct 27, 2019 7:31 pm

Yes, there is always an octet formed.

SMIYAZAKI_1B
Posts: 56
Joined: Sat Aug 24, 2019 12:15 am

Re: Lewis Structures for Resonance

Postby SMIYAZAKI_1B » Mon Oct 28, 2019 8:22 am

As the first person mentioned, the Lewis Structure for resonance does not always have a octet rule. Of course, as we always say, Hydrogen, Helium, lithium, and Beryllium does not have octet rule but it has duet rule. Other certain structures does have a different types of rules as well such that some holds more then 8 valence electrons.

christabellej 1F
Posts: 93
Joined: Sat Aug 17, 2019 12:17 am

Re: Lewis Structures for Resonance

Postby christabellej 1F » Mon Oct 28, 2019 8:31 am

Generally, the octet rule will be followed for lewis structures that have resonance. However, as someone mentioned above, some atoms can form more than four bonds because they are big enough and have the ability to fill the d orbitals. This only starts after the 3 p level though, and so some atoms in this level or more can form more than four bonds or have additional lone pairs on the atom.


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