Chemistry: Atoms First (2nd Edition)

Published by Cengage Learning
ISBN 10: 1305079248
ISBN 13: 978-1-30507-924-3

Chapter 4 - Exercises - Page 197c: 40

Answer

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Work Step by Step

Use the localized electron model to describe the bonding in $CCl_{4}$. In the localized electron model, the bonding in CCl4 can be described as follows: The carbon atom has 4 valence electrons, and it forms covalent bonds with four chlorine atoms, each contributing 7 valence electrons. This results in the formation of four C-Cl covalent bonds. The carbon atom has no lone pairs of electrons, and the four covalent bonds are arranged in a tetrahedral geometry around the carbon atom. The bond angle between the four C-Cl bonds is approximately 109.5°, which is the ideal tetrahedral angle. This is because there are no lone pairs of electrons on the carbon atom, and the repulsive interactions between the bonding pairs of electrons are minimized. The localized electron model accurately describes the overall shape and bond angles in the CCl4 molecule, which is a tetrahedral molecule.
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