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Tatiana R Dis 3E
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Joined: Fri Sep 29, 2017 7:07 am


Postby Tatiana R Dis 3E » Wed Nov 29, 2017 10:08 am

How do you know when something is hybridized and how do you know which hybrid orbital it is

Anna Goldberg 2I
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Joined: Fri Sep 29, 2017 7:04 am
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Re: When?

Postby Anna Goldberg 2I » Wed Nov 29, 2017 10:12 am

For knowing which hybridized orbital to use, consider the regions of electron density in the compound.
Linear: sp
Trigonal planar: sp2
Tetrahedral: sp3
Trigonal bipyramidal: sp3d
Octahedral: sp3d2

For compounds with lone pairs, consider the electron arrangement about the compound.
For example, a compound that is trigonal pyramidal has a tetrahedral electron arrangement (one lone pair, three bonded pairs). It thus is sp3 hybridized.

Christine Wastila 1H
Posts: 61
Joined: Fri Sep 29, 2017 7:04 am

Re: When?

Postby Christine Wastila 1H » Thu Nov 30, 2017 9:49 pm

To summarize, the number of orbitals should match the regions of electron density. So if you have AX4 or AX3E, it would be sp3 (1 s orbital + 3 p orbitals=4 total) because there are 4 regions of electron density in both cases even though one of those regions is a lone pair in the latter example.

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