CH 7-8-9 - notes 4-ionic vs covalent bonding

CH 7-8-9 notes - AP chem OMalley Chapters 7 8 9 structure bonding 4 Name Text p 329 354(8.1 8.9 Bonds result from the tendancy of a system to

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AP chem – O’Malley Chapters 7, 8, 9 – structure & bonding 4 Name: ____________________ Text: p 329 – 354 (8.1 – 8.9) © S. O’Malley 2010 Bonds result from the tendancy of a system to achieve its lowest possible energy. IONIC BONDING – the _________________ of electrons. 1. Negative ions are called ______________ and positive ions are called ____________. 2. Main group elements form ions to achieve a noble gas ________________ __________________. 3. Ionic compounds have _______ melting points, conduct when dissolved in __________, or when _________. 4. Arrange the following in order of increasing size: (a) (b) (c) Se 2- Br - Rb + Sr 2+ Li + Na + K + Rb + Cs + Ba 2+ Cs + I - Te 2- LATTICE ENERGY – the energy needed to change _____________ ions into the ______________ state. Li(s) → Li(g) H = ______ kJ/mol Li(g) → Li + (g) + e - H = ______ kJ/mol ½ F 2 (g) → F(g) H = ______ kJ/mol F(g) + e - → F - (g) H = ______ kJ/mol Li + (g) + F - (g) → LiF(s) H = ______ kJ/mol
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This note was uploaded on 09/19/2011 for the course CHEM 1110 taught by Professor Hansen during the Fall '11 term at St. Johns Duplicate.

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CH 7-8-9 notes - AP chem OMalley Chapters 7 8 9 structure bonding 4 Name Text p 329 354(8.1 8.9 Bonds result from the tendancy of a system to

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