Lecture 24 October 22 2008 - Announcements...

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Announcements Homework on Chapter 7 due October 27 Homework on Chapter 8 due November 3 Midterm Grades posted.  Approximate  grades.  Calculated using 75% of the average of  exam 1 and 2 and 25% of Blackboard  Grade Clicker points posted soon
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Chapter 7:  Chemical Bonding and  Molecular Structure The Ionic Bond (7.2) Formation of Anions and Cations The Covalent Bond (7.3)  Energy, Reactions and Structure of Molecules Electronegativity and Bond Polarity (7.4) Lewis Structures (7.5) Orbital Overlap and Chemical Bonding (7.6) Hybrid Orbitals (7.7) Shapes of Molecules (7.8) Fluorine Compounds (7.9)
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Polar Covalent Bonds Ionic and covalent bonds represent two  extremes of a continuous spectrum.  Between  these are bonds known as polar covalent bonds
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Electron Distribution in Covalent Bonds Ionic Bond Non Polar  Covalent Bond Polar Covalent Bond
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Electron Distribution in Covalent  Bonds 
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Electronegativity Electronegativity (EN):  The ability of an atom  to attract the shared electrons in a bond Related to ionization energy and electron affinity Expressed on a scale where F is 4.0 Electronegativity can be used to predict bond  polarity
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Electronegativity
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Electronegativity Trends in Periodic  Table   Electronegativity increases from left to right      and decreases from top to bottom
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This note was uploaded on 08/29/2010 for the course CHM 2045 taught by Professor Brant during the Fall '08 term at University of South Florida - Tampa.

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Lecture 24 October 22 2008 - Announcements...

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