Lone pairs effect hybridization

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Natalie LeRaybaud 1G
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Joined: Thu Jul 13, 2017 3:00 am

Lone pairs effect hybridization

Postby Natalie LeRaybaud 1G » Thu Nov 16, 2017 8:36 pm

Do lone pairs effect hybridization? And if so what would be the hybridization of an atom with more than 4 or 5 electron domains ?

Curtis Tam 1J
Posts: 105
Joined: Thu Jul 13, 2017 3:00 am

Re: Lone pairs effect hybridization

Postby Curtis Tam 1J » Thu Nov 16, 2017 8:56 pm

Yes you must take the lone pairs into consideration. When there are more than 5 bonding regions, let's just say 6, then you would have a hybridization of sp3d2. I don't think you will run into many situations where there are 7 bonding regions but if there are im guessing you would increase the number of d orbitals. Not too sure on that.

Posts: 52
Joined: Sat Jul 22, 2017 3:01 am

Re: Lone pairs effect hybridization

Postby skalvakota2H » Thu Nov 16, 2017 10:44 pm

Yes, the lone pairs do count as an electron group towards the hybridization of the central atom since hybridization is based on electron density, which consists of the bonds and lone pairs.

As for atoms with four regions of electron density, the central atom would be sp3 hybridized. Once the number of electron density regions exceeds four, the d orbitals become hybrid orbitals as seen in the above example.

Phillip Winters 2F
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Joined: Fri Sep 29, 2017 7:05 am

Re: Lone pairs effect hybridization

Postby Phillip Winters 2F » Fri Nov 17, 2017 9:09 am

When counting regions of electron density around an atom to determine hybridization, you would include the lone pairs

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