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Chemical Bonding I : Basic Concepts Copyright © 2011 Pearson Canada Inc. CONTENTS 10-1 Lewis Theory: An Overview 10-2 Covalent Bonding: An Introduction 10-3 Polar Covalent Bonds and Electrostatic Potential Maps 10-4 Writing Lewis Structures 10-5 Resonance 10-6 Exceptions to the Octet Rule 10-7 Shapes of Molecules 10-8 Bond Order and Bond Length 10-9 Bond Energies Lewis Theory: An Overview  Valence e - play a fundamental role in chemical bonding.  e - transfer l
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  Chemical Bonding I: Basic Concepts Copyright © 2011 Pearson Canada Inc. ONTENTS 10-1 Lewis Theory: An Overview 10-2 Covalent Bonding: An Introduction 10-3 Polar Covalent Bonds and Electrostatic Potential Maps 10-4 Writing Lewis Structures 10-5 Resonance 10-6 Exceptions to the Octet Rule 10-7 Shapes of Molecules 10-8 Bond Order and Bond Length 10-9 Bond Energies  Lewis Theory: An Overview  Valence e -  play a fundamental role in chemical  bonding.  e -  transfer leads to ionic bonds.    Sharing of e -  leads to covalent bonds.  e - are transferred or shared to give each atom a noble gas configuration  the octet.    Lewis Symbols  A chemical symbol represents the nucleus and the core   e - .  Dots around the symbol represent valence e - .  Si ã   ã   ã   ã    N ãã   ã   ã   ã   P ãã   ã   ã   ã   As ãã   ã   ã   ã   Sb ãã   ã   ã   ã   Bi ãã   ã   ã   ã     ã  ã   Al ã   ã   ã   Se ã   ã   ã   ãã   Ar   ã  ã   ãã   ãã   I ã   ãã     ã  ã   ãã    Ba ã   ã   O ã   ãã   ã   ãã     ã  ã   O   ã  ã   ãã   ãã   Ba 2+ 2- BaO Writing Lewis Structures of Ionic Compounds. Write Lewis structures for the following compounds: (a) BaO; (b) MgCl 2  ; (c) aluminum oxide.  Note the use of the ―fishhook‖ arrow to denote a single electron movement. A ―double headed‖ arrow means that two electrons move. Example
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