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Chapter_10_Part_1 - Chapter 10 Part 1 Page 1 of 3 Chapter...

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Unformatted text preview: Chapter 10 Part 1 Page 1 of 3 Chapter 10: Molecular Geometry and Chemical Bonding Theory Part 1 In the first part of this chapter we use the Lewis Electron–Dot formula to determine • the arrangement of the electron pairs (or really, the regions of electron density) • the molecular geometry The basis of both of these is that regions of electron density repel each other and so will be arranged as far apart as possible. As a result, we can predict the arrangement of these regions of electron density. Note: The text uses “electron pairs” to mean regions of electron density. The distinction is needed when dealing with a formula that has a multiple bond. All of the electrons in that bond are considered to be one region of electron density. Molecular Geometry and Directional Bonding 1. The Valence–Shell Electron Pair Repulsion (VSEPR) Model a. Central Atom with Two, Three, or Four, Five and Six Valence–Shell Electron Pairs Electron Pair Arrangement • two pairs of electrons (regions of electron density)...
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Chapter_10_Part_1 - Chapter 10 Part 1 Page 1 of 3 Chapter...

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