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Hybridization of Xenon

  • Thread starter Qube
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  • #1
Qube
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Homework Statement



When we hybridize xenon, do we excite one electron each from its 5s and 5p orbitals to its d orbital?

I know the ground state xenon looks something like this:
http://i.minus.com/jbt6v4btYTThFJ.jpg [Broken]

But when it's hybridized does Xenon look like this?

http://i.minus.com/jkkyRXOE2bht6.jpg [Broken]
 
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Answers and Replies

  • #2
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Of the 5s and 5p electrons in the outermost orbit of Xe, two of the 5p orbital electrons get excited to the vacant 5 d orbital resulting in 4 unpaired hybridized electrons, 2 in 5p and 2 in 5d orbitals.
 
  • #3
DrDu
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d-electrons play no mayor role in bonding in Xenon compounds. Especially there are no spd hybrid orbitals involved in bonding.
 
  • #4
Qube
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But how does xenon form so many bonds such as in xeF4
 
  • #5
DrDu
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As I am not good in drawing in this forum, let's look at XeF2 instead:
You can write two mesomeric resonance structures:
F- Xe-F <-> F-Xe F-
In the case of XeF4, there are correspondingly 6 resonance structures with two F- atoms and two covalently bonded F. The bonding involves mainly the p orbitals on Xe, I don't think that hybridizing Xe will lead to any improvement.
 

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