exceptions ?

[Karina Rodriguez 2H]

Are there any exceptions that arise in hybridization? Or will it always depend only on number of bonds?

[AndrewNguyen_2H]

To my knowledge there aren't really any exceptions. Be careful when saying number of bonds, as hybridization also include the number of lone pairs. So like oxygen in H2O is really sp3 hybridized.

[Madeline Louie 1I]

Like Andrew said, the number of regions of electron density equals the number of hybrid orbitals, including both lone pairs and bonding pairs. I also can't think of any exceptions, but always pay attention to the number of sigma bonds, pi bonds, and lone pairs because pi bonds occur through the unhybridized p-orbital.

[Kaylee Messick 3J]

Like the others said, the regions of electron density show the number of hybrid orbitals. This would mean that double bonds would still remain one region of electron density. For example, in the lecture on Friday, the example of CO2 had a hybridization of sp even though carbon had double bonds. Hope this helps!

[605721741]

Cr and Cu are exceptions to the normal aufbau model, because of their 4s1 3d5 and 4s1 3d9 configuration.