Chp6 - Chapter 6 Exercises Molecular Shape Problems 1 3 5 16 Hybridization Problems 7 9 21-23 41a,b MO Diagrams Problems 44-48 Delocalization c 42

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Chapter 6 Exercises Molecular Shape Problems 1, 3, 5, 16 Hybridization Problems 7, 9, 21-23, 41a,b MO Diagrams Problems 44-48 Delocalization Problems 25, 41c, 42, 43
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VSEPR V alence S hell E lectron P air R epulsion Groups of negative charge around an atom will adopt a position to minimize the repulsions between them Transition from a 2-D (Lewis) to a 3-D structure (molecular geometry)
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Electron Group Lone pair (LP) or a bonding pair (BP) Single, double, or triple bonds are all considered to be ONE group Atoms which obey the octet rule can have 2, 3, or 4 electron groups Hydrogen has 1 electron group
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Determining Shape Draw Lewis structure Count electron regions – LP and bonds Determine electron geometry from # of e - groups Determine molecular shape by considering ATOMS ONLY
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Electron Geometry Molecular Shape linear trigonal planar tetrahedral
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Expanded Octet Can apply to atoms with more than an octet of VE Atoms after 2 nd period 5 groups; trigonal bipyramidal (tbp) – LP in equatorial 6 groups; octahedral – multiple LP on same axis (180 o apart)
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Molecular Flexibility C C C C C C H H H H H H H H H H H H C C H C C H H H H H
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This note was uploaded on 01/24/2010 for the course CH Ch101 taught by Professor Bigham during the Fall '08 term at N.C. State.

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Chp6 - Chapter 6 Exercises Molecular Shape Problems 1 3 5 16 Hybridization Problems 7 9 21-23 41a,b MO Diagrams Problems 44-48 Delocalization c 42

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