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Linear Electronic Geometry:AB
2 Species (No Lone Pairs of
Electrons on A) Some examples of molecules with this
geometry are: BeCl
2, BeBr
2, BeI
2, HgCl
2, CdCl
2
All of these examples are linear, nonpolar molecules.
Important exceptions occur when the two substituents are not the same!BeClBr or BeIBr will be linear and polar!
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Linear Electronic Geometry:AB
2 Species (No Lone Pairs of
Electrons on A)
Electronic Geometry
H
C
HHH
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Linear Electronic Geometry:AB
2 Species (No Lone Pairs of
Electrons on A)
Polarity
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Linear Electronic Geometry:AB
2 Species (No Lone Pairs of
Electrons on A)Valence Bond Theory (Hybridization)
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Linear Electronic Geometry:AB2 Species (No Lone Pairs of
Electrons on A)
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Trigonal Planar Electronic Geometry: AB3 Species (No Lone Pairs of
Electrons on A) Some examples of molecules with this
geometry are: BF3, BCl3
All of these examples are trigonal planar, nonpolar molecules.
Important exceptions occur when the three substituents are not the same!BF2Cl or BCI2Br will be trigonal planar
and polar!
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Trigonal Planar Electronic Geometry: AB3 Species (No Lone Pairs of
Electrons on A)
Dot Formula Electronic Geometry
H
C
HHH
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Trigonal Planar Electronic Geometry: AB3 Species (No Lone Pairs of
Electrons on A)
Polarity
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Trigonal Planar Electronic Geometry: AB3 Species (No Lone Pairs of
Electrons on A)Valence Bond Theory (Hybridization)
3s 3p
Cl [Ne]
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Trigonal Planar Electronic Geometry: AB3 Species (No Lone Pairs of
Electrons on A)
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Tetrahedral Electronic Geometry: AB
4 Species (No Lone Pairs of
Electrons on A)
Some examples of molecules with this geometry are: CH
4, CF
4, CCl
4,
SiH
4,
SiF
4
All of these examples are tetrahedral, nonpolar molecules.
Important exceptions occur when the four substituents are not the same!CF3Cl or CH2CI2 will be tetrahedral and polar!
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Tetrahedral Electronic Geometry: AB
4 Species (No Lone Pairs of
Electrons on A)
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Tetrahedral Electronic Geometry: AB
4 Species (No Lone Pairs of
Electrons on A)
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