## How to write

$sp, sp^{2}, sp^{3}, dsp^{3}, d^{2}sp^{3}$

Rita Chen 1B
Posts: 112
Joined: Sat Jul 20, 2019 12:15 am

### How to write

How do I know how to write these hybridization? How does it relate to shape?

LBacker_2E
Posts: 104
Joined: Wed Sep 18, 2019 12:21 am
Been upvoted: 1 time

### Re: How to write

If you count the number of valence electrons, you can determine the atoms hybridization. For example if you have a Carbon atom, which has 2 electrons in the 2s and 2 electrons in the 2p orbitals, then these orbitals would combine to form a hybridization of sp3. This means that now the Carbon atom can form 4 bonds as we know from its Lewis structure, because if we listed it as its electron configuration, we are saying that the 2s electrons are a pair and cannot bond, leaving only the 2 2p electrons to bond. I don't know if that was clear, but I hope this helps.

Grecia Velasco 4D
Posts: 56
Joined: Thu Jul 11, 2019 12:17 am

### Re: How to write

LBacker_4F wrote:If you count the number of valence electrons, you can determine the atoms hybridization. For example if you have a Carbon atom, which has 2 electrons in the 2s and 2 electrons in the 2p orbitals, then these orbitals would combine to form a hybridization of sp3. This means that now the Carbon atom can form 4 bonds as we know from its Lewis structure, because if we listed it as its electron configuration, we are saying that the 2s electrons are a pair and cannot bond, leaving only the 2 2p electrons to bond. I don't know if that was clear, but I hope this helps.

How does it make a hybridization of sp3 though? how do you know how to write it (hybridization is big confusing).

Pegah Nasseri 1K
Posts: 100
Joined: Wed Feb 27, 2019 12:15 am

### Re: How to write

To figure out the hybridization, you have to count the number of regions of electron density surrounding the atom. A single bond, double bond, triple bond, and lone pair each count as one region of electron density.

Number of regions
of electron density:
2 : sp
3 : sp^2
4 : sp^3
5 : sp^3d
6 : sp^3d^2

For example, the sp^3 hybridization would correspond to an atom with three regions of electron density, in which the s orbital and two of the p orbitals hybridize.

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