1372 Lec 29SEP2011 - 1 Chapter 9: Chemical Bonds Chemical...

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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 1 Chemical bonds: electrostatic forces that hold atoms together in molecules and keep ions in place in solid ionic compounds. Chapter 9: Chemical Bonds Nuclei repel other nuclei Nuclei attract electron(s) Electrons repel other electrons H 2 Review
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 2 Lewis Symbols Bonding Pair Lone Pair Ionic Bond Covalent Bond
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General Chemistry 4 th edition, Hill, Petrucci, McCreary, Perry 3 Multiple Covalent Bonds In a double bond two pairs of electrons are shared. In a triple bond three pairs of electrons are shared. Review
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4 th edition, Hill, Petrucci, McCreary, Perry 4 Nonpolar covalent bond : bonding electrons are shared equally between identical atoms . Polar covalent bond : the electrons are drawn closer to the atom of higher electronegativity; Ionic bond : electrons are completely transferred from metal to nonmetal atoms . Electronegativity and Bond Type Electronegativity ( EN ) is a measure of the ability of an atom to attract its bonding electrons to itself. Review
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1372 Lec 29SEP2011 - 1 Chapter 9: Chemical Bonds Chemical...

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