Expanded Valence Shell

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Dylan Davisson 2B
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Joined: Thu Jul 27, 2017 3:00 am
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Expanded Valence Shell

Postby Dylan Davisson 2B » Sun Nov 12, 2017 1:01 pm

Since a valence shell beyond period three can be expanded to accommodate upwards of 12 electrons, what is the largest practical expanded valence shell that can be found in a Lewis structure?

Stephanie tran 1J
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Joined: Fri Sep 29, 2017 7:04 am

Re: Expanded Valence Shell

Postby Stephanie tran 1J » Sun Nov 12, 2017 2:48 pm

the larger the central atom, the larger the number of electrons that can surround it and expanded valence shells occur most commonly when the central atom is bonded to small electronegative atoms like F, Cl, and O. The greatest I can think of is iodine heptafluoride which has 7 bonds, but expanded valence shells with 5 bonds or 6 bonds are more commonly seen.

Michaela Capps 1l
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Joined: Thu Jul 27, 2017 3:00 am

Re: Expanded Valence Shell

Postby Michaela Capps 1l » Wed Nov 15, 2017 12:50 pm

I believe that in general, not more that 16 electrons will be involved


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