Lecture_15_Ionic_Bonds - highest energy level of a second...

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L E C T U R E N O T E S LECTURE 15 Ionic Bonds GENERAL CHEMISTRY Fall 2008 Updated: 11/22/2011
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Introduction A. Ionic Compounds 1. A compound composed of positive and negative ions that are combined so that the numbers of positive and negative charges are equal a. Most are crystalline solids b. Examples include NaCl, MgBr 2 , Na 2 O B. Formula Unit 1. The simplest collection of atoms from which an ionic compound's formula can be established Formation of Ionic Compounds A. Electron Configuration Changes 1. Electrons are transferred from the highest energy level of one atom to the
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Unformatted text preview: highest energy level of a second atom, creating noble gas configurations in all atoms involved 2. Formation of sodium chloride a. Na = 3s 1 Cl = 3s 2 3p 5 b. Na = 2s 2 2p 6 Cl = 3s 2 3p 6 Oppositely charged ions come together in a ratio that produces a net charge = 0 Na Cl Properties of Ionic Compounds Structure Crystalline Solids Melting points Generally high Boiling points Generally high Conductivity Excellent conductors Solubility Generally soluble Updated: 11/22/2011...
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Lecture_15_Ionic_Bonds - highest energy level of a second...

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