Chapter 4 - October 13, 2016 Notes
Chapter 4 - October 13, 2016 Notes CHM 151
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This 6 page Class Notes was uploaded by Stefanie Bennett on Sunday October 16, 2016. The Class Notes belongs to CHM 151 at Maricopa Community Colleges - Glendale Community College taught by Dr. Tina Palmer in Fall 2016. Since its upload, it has received 8 views. For similar materials see Intro to Chemistry in Chemistry at Maricopa Community Colleges - Glendale Community College.
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Date Created: 10/16/16
October 13, 2016 Thursday, October 13:48 PM Compounds of row elements and lower can have expanded octets. Chapter 4 Page 1 Chapter 4 Page 2 Electronegativity is an atom’s ability to attract electrons to itself. Electron density maps are useful in showing where electrons tend to spend the majority of their time (red) Chapter 4 Page 3 tend to spend the majority of their time (red) • A nonpolar covalent bond occurs between two nonmentals or a semimetal and a nonmetal whose E is less than 0.5 • A polar covalent bond occurs between two nonmentals or a semimetal and a nonmetal whose E is between 0.5 and 2.0 • An ionic bond is an electrostatic attractive force between a fully charged metal ion and nonmetal ion. Typically E is greater than 2.0. Valence Shell Electron Pair Repulsion Theory – Molecules arrange themselves in three-dimensional space in order to minimize repulsive forces from the electron clouds of adjacent atoms. Chapter 4 Page 4 Chapter 4 Page 5 Chapter 4 Page 6