Molecular Geometry Worksheet With Answer Key Page 11
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11§ Multiple bonds:
The extra electon pairs in a double or triple bond
have no effect
on the
geometry of the molecule.
The extra electron pairs in a multiple bond (one pair in a double bond, two pairs
in triple bond) are not located in hybrid orbitals.
−
≡
−
H
C
C
H
2
sp
sp
－：hybrid orbital
Ex 7-10: Sate the hybridization of nitrogen in
-
a )
b)
c)
NH
NO
N
3
2
2
N ≡
:
N
:
AX
E
AX
E
AXE
3
1
2
1
1
3
2
sp
sp
sp
§ Sigma and Pi Bonds
σ
π
σ
Single bond = 1
bond
σ
π
Double bond = 1
bond + 1
bond
σ
π
Triple bond = 1
bond + 2
bond
π
σ
Ex 7-11: Give the number of
bond and
bond in
-
a )
b)
c )
NH
NO
N
3
2
2
N ≡
:
N
:
σ
σ
π
σ
π
3
bond
2
bond + 1
bond
1
bond + 2
bond
11
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