valence shell electron pair repulsion theory
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7 Terms
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shape and bond angles of covalent bonds depend on
number of electron pairs around each atom…whether these pairs are lone or bonding pairs
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valence electrons
outer shell electrons
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electron repulsion
lone pairs repel each other more than bonded pairs
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shape deduction
most stable shape is that which minimizes the forces of repulsion
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tetrahedral structure
four bonding pairs…109.5 degrees
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pyramidal structures
three bonding pairs…107 degrees
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water
two bonding pairs…104.5 degrees
Note 
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