Chem - Molecular Geometry gen

Chem - Molecular Geometry gen - a single bond and no lone...

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VSEPR Theory All we have done so far with e - dot structures for molecules is look at molecular structures in 2 dimensions. The VSEPR Theory helps us picture molecules 3 dimensionally. A.Tetrahedral H Ex: CH 4 H C H H Central atom (C) contains four bonds and no lone pair e - Therefore, the shape a molecule takes when it has these characteristics  (4 bonds and no lone pair e - .) is TETRAHEDRAL .
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B.Pyramidal Ex: NH 3 H N H H The central atom (N) has three bonds and one lone pair of e - . Therefore, the shape the molecule takes when it has these  characteristics (3 bonds and one lone pair of e - ) is  PYRAMIDAL .
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A.Bent Triatomic Ex: H 2 O H O H The central atom (C) has two bonds and one lone pair of e - Therefore, the shape the molecule takes when it has these  characteristics (2 bonds and 2 lone pair of e - ) is BENT   TRIATOMIC .
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B.Linear Triatomic Ex: CO 2 O C O The central atom (C) has two double bonds, or one triple bond and 
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Unformatted text preview: a single bond, and no lone pair e- Therefore, the shape the molecule takes when it has these characteristics (2 bonds and no lone pair of e-) is LINEAR TRIATOMIC . C.Tigonal Planar Ex: SO 3 O S O O The central atom (S) has 3 bonds, and no lone pair e- Therefore, the shape the molecule takes when it has these characteristics (3 bonds, and no lone pair of e-) is TRIGONAL PLANAR . D.Linear Ex: HCl H Cl One bond between 2 elements, regardless of bond and number of lone pair e- forms a shape called LINEAR . REVIEW Shape of Molecule Characteristics Tetrahedral 4 bonds and no lone pairs Pyramidal 3 bonds and 1 lone pair Bent Triatomic 2 bonds and 2 lone pairs Linear Triatomic 2 bonds and no lone pairs Trigonal Planar 3 bonds and no lone pairs Linear 1 bond...
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Chem - Molecular Geometry gen - a single bond and no lone...

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