Polyatomic Ions

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Polyatomic Ions
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Covalent Bond Formation
H0
H0
e-
e-
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Covalent Bond Formation
F
F

F
F
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Covalent Bond Formation
F
F
F
F
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Bond Length
energy
0
Bond length
optimum
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Electron Configuration 8 Valence Electrons
z
x
y
Ne 2s22p6
Ne
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What Happens When Covalent Bonds Form?
z
x
y
C 2s22p2
C
The Orbital Configuration (Shape) Changes VSEPR
Theory
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Structure of CH4

4 H?
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Structure of NH3

3 H?
3 atoms, 1 pair of unshared electrons Pyramidal
Pyramidal Geometry
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Structure of H2O
2 atoms, 2 pair of unshared electrons Bent
Bent Geometry
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Structure of H2O
2 atoms, 2 pair of unshared electrons Bent
Bent Geometry
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Structure of NO3-1


N
1 e
3 O
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Structure of CO2

C
2 O