vsepr2 - Valence Shell Electron Pair Repulsion Theory...

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vsepr2.wpd 10/22/98 Valence Shell Electron Pair Repulsion Theory Molecular geometry as a function of geometrical distribution of valence-shell electron pairs and number of lone pairs Number of Geometrical Number Ideal electron pair distribution of of lone VSEPR Molecular Bond Hybrid- directions electron pairs pairs notation geometry Angles ization Examples 2 linear 0 AX 2 180° sp BeCl 2 , HCN 3 trigonal 0 AX 3 120° sp 2 BF 3 planar trigonal 1 AX 2 E 120° sp 2 SnCl 2 , O 3 planar 4 tetrahedral 0 AX 4 109.5° sp 3 CH 4 tetrahedral 1 AX 3 E sp 3 NH 3 tetrahedral 2 AX 2 E 2 sp 3 H 2 O
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2 Number of Geometrical Number Ideal electron pair distribution of
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vsepr2 - Valence Shell Electron Pair Repulsion Theory...

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