IonicNOTES - 12/2/06 Ionic - Empirical formula: simplest...

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Ionic Covalent - Empirical formula : simplest whole number ratio of the ions - Molecular formula : exact number of type of atoms in a molecule - Use ions chart for naming the compound, the total charge from the ions must equal zero - use prefixes for naming - Forms from the transfer of electrons - Forms from the sharing of electrons - Metals and nonmetals large difference in Electronegativity - Nonmetals and nonmetals, small - Nondirectional attractive force - Attractive force is only between atoms sharing electrons - Endless array of positively and negatively charged particles - Separate groups of atoms called molecules - Solids at room particles - Gases, liquids, and solids at room temperature - Medium to high melting points - Low to medium melting points - Nonconductor as solid - Always a nonconductor as solid on liquid - Conductor as liquid - Many are insoluble in waters - Most are soluble in water - Most are nonconductors as solutions - Most are conductors as solutions Ex. N2O3 Ex. BaCl2 CCl4 Ionic bonds I. The attraction between opposite charges releases energy and produces a lower energy state after a complex series of changes II. The size and charge on the ion determines the structure and stability of the compound III. The lattice energy is the energy change that takes place when separated gaseous ions form a lattice structure
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IonicNOTES - 12/2/06 Ionic - Empirical formula: simplest...

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