Question regarding "Molecular Bond of SF6"

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Yinhan_Liu_1D
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Joined: Sat Sep 24, 2016 3:00 am

Question regarding "Molecular Bond of SF6"

Postby Yinhan_Liu_1D » Sat Nov 05, 2016 10:07 am

In the textbook p140, it mentions that "the four valence orbitals provided by the sulfur atom and the six orbitals of the fluorine atoms that point toward the sulfur atom, a total of 10 atomic orbitals..."

1) Why does sulfur atom has FOUR valence orbitals? Why not 6?

2) Why is the bond order of the six S-F links 2/3 ?

3) In the energy diagram just beside the paragraph, why is there a Non-Bonding energy level? What does that mean in actual molecular bonding?

I am so confused about this section. And I would really appreciate your help.

Chem_Mod
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Re: Question regarding "Molecular Bond of SF6"

Postby Chem_Mod » Thu Nov 10, 2016 1:41 pm

Focus on diatomic molecules as we are not covering molecular-orbital theory for polyatomic molecules.
Notice I did not assign any homework problems on polyatomic molecular-orbital theory.


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