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Chemistry Forums for Students => Undergraduate General Chemistry Forum => Topic started by: kougou on December 09, 2012, 10:29:35 PM

Title: when to use hybridized orbital?
Post by: kougou on December 09, 2012, 10:29:35 PM

Hi.

I am wondering when should we use hybridized orbital?
For PH3, we don't use hybridized orbital because it could be described by  the valence shell method.
p: [Ne]   3s: :spinpaired:   3p:  :spinup:  :spinup:  :spinup:. 

And we have 3 up. so the 3 extra electrons from hydrogen could fit into there. Therefore we don't need hybridized orbital.
But when do we need it?

Title: Re: when to use HYBRIdiZED ORBITAL?
Post by: Hunter2 on December 10, 2012, 12:58:03 AM

Describe PCl₅

Title: Re: when to use HYBRIdiZED ORBITAL?
Post by: kougou on December 10, 2012, 05:51:47 PM

Quote from: Hunter2 on December 10, 2012, 12:58:03 AM

Describe PCl₅

p only has 3 unbound p orbital.
Therefore, you need sp2d2 hybri orbitial

Title: Re: when to use HYBRIdiZED ORBITAL?
Post by: Hunter2 on December 11, 2012, 02:27:52 AM

Correct.