VSEPR Models. Molecular Shapes of Compounds. VSEPR. V = Valence S= Shell E = Electron P = Pair R = Repulsion Used to predict the 3-D molecular shape of molecules. VSEPR Traits. Electrons on central atom arrange themselves as far apart as possible. - PowerPoint PPT Presentation
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Molecular Shapes of Compounds
VSEPR Models
VSEPR
V = Valence
S = Shell
E = Electron
P = Pair
R = RepulsionUsed to predict the 3-D molecular shape
of molecules
VSEPR TraitsElectrons on central atom arrange themselves
as far apart as possible.Lone pairs on central atom repel the mostShared pairs on central atom repel the leastWe need to know:
- Lewis structure (#of bonded e- pairs & # of lone pair e- pairs)- VSEPR structure- VSEPR name- Bond angle
No VSEPR models for Ionic compounds
One more things that may helpGeneric formula to remember shapesA = central atomX = bonded pair e-