Transcription of Chapter 9 Chemical Bonding II: Molecular Geometry and ...
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Chapter 9 Chemical Bonding II: Molecular Geometry and ...
Copyright McGraw-Hill 20091 Chapter 9 Chemical Bonding II: Molecular Geometry and Bonding Theories Copyright McGraw-Hill Molecular Geometry Molecular Geometry is the three-dimensional shape of a molecule. Geometry can be predicted using Lewis dot structures VSEPR modelCCl4 Copyright McGraw-Hill 20093 Molecules of the type ABxwill be considered A is the central atom B atoms surround the central atom xcommonly has integer values from 1 to 6 Examples:All AB1molecules are McGraw-Hill 20094 Copyright McGraw-Hill 2009AB2AB3 Copyright McGraw-Hill 20095 Copyright McGraw-Hill 2009 VSEPR Model: Valence-Shell Electron-Pair Repulsion Model Electron pairs move as far apart as possible to minimize Strategy to predict Geometry : Electron domainis a lone pair or a bond(the bond may be single, double, or triple). Copyright McGraw-Hill 20096 Copyright McGraw-Hill 2009 Steps to determine Geometry Step #1: Draw the molecule s Lewis structure.
Copyright McGraw-Hill 2009 64 Key Points •Molecular geometry – and –, and. Title: PowerPoint Presentation Author: John Gelder Created Date: 11/10/2009 4:09:24 PM
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