Chem 161 Chapter 9 Molecular Geometry Worksheet - Shape Determines Function Page 24
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401. Draw the Lewis formula for the SF
molecule below:
6
Lewis formula
Sketch of molecule
2. The SF
molecule’s shape is ____________ and its bond angles are _______.
6
Sketch the molecule above.
3. Electron configuration for S (using core notation): ___________________
4. Draw the atomic orbital diagram
for the valence electrons in S:
5. Promote electrons in the atomic
orbital diagram, so S can form 6 bonds.
Although S now has unpaired electrons in 6 orbitals for bonding, the atomic orbital diagram
in step 5 indicates that three different types of the S–F bonds (one from 3s, three from 3p,
two from 3d).
But VSEPR predicts SF
is octahedral and experimental evidence indicates that the six S–F
6
bonds are equivalent
3
2
→ hybridize one 3s, three 3p orbitals, two 3d orbital to get 6 equivalent sp
d
hybrid orbitals
Show the atomic orbital diagrams for the hybridization below:
hybridization
"
" " " " "
→
€
atomic orbital diagram before hybridizing
atomic orbital diagram after hybridizing
CHEM
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