vsepr-vb-help - same geometries of our 5 electronic...

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VSEPR Theory and VB Theory VSEPR Valence Shell Electron Pair Repulsion Electronic Geometry Molecular Geometry Valence Bond (VB) Theory • VSEPR addresses SHAPES only - the logic is based solely on repulsions of negative regions. • VB Theory actually addresses the BONDING that must occur. Bonding from the OVERLAP of atomic orbitals. • Both theories have their merits • Both theories work well in a cooperative way (learn them both!) Hybrid Orbitals Keep these things in Mind for VB Theory • The same filling rules still apply. Only 2 electrons max per orbital and electrons occupy levels singly before pairing begins. • Each hybrid we make will be part of a SET of hybrid orbitals - these SETS will have the
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Unformatted text preview: same geometries of our 5 electronic geometries that VSEPR theory predicted. You will always get as many hybrid-orbitals as you do atomic orbitals to make them. Generally speaking, all hybrid orbitals have the same basic shape - a large positive lobe pointing one direction and another (smaller and negative) lobe pointing opposite (180). +-typical single hybrid orbital All the hybrid orbitals in a SET are degenerate. It is the OVERLAP of orbitals that leads to bonding. In wave-theory, this is called constructive interference. Our Quick and Dirty Method for Drawing Hybrid Orbital Sets...
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This note was uploaded on 10/13/2008 for the course CH 301 taught by Professor Fakhreddine/lyon during the Fall '07 term at University of Texas at Austin.

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vsepr-vb-help - same geometries of our 5 electronic...

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