Octet Rule
Key Questions
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But of course...
and we see that in many molecules, like the trigonal bipyramidal
PCl5 , the octahedralSF6 , and the square pyramidalClF5 . There are many other examples among transition metal complexes that I won't mention.Here,
10 valence electrons surround phosphorus.
Here,
12 valence electrons surround sulfur.
Here,
12 valence electrons surround chlorine.
This is possible because all three central atoms have access to orbitals on the third quantum level,
n=3 . In all of these cases, the3d orbitals can be used, allowing extra space to store more than8 total valence electrons.
Truong-Son N.
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May 15 2018