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Chemical Bonding

Chemical Bonding. Why do atoms stick together, anyway?. Who cares?. Types of Bonding. Ionic Covalent Metallic. Ionic Bonding:. Covalent Bonding:. Covalent Bonding Uses Valence Electrons. Also called Lewis Dot Symbols. How many valence electrons does a Si atom have?. 1 2 3 4 5 6

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Chemical Bonding

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  1. Chemical Bonding Why do atoms stick together, anyway? Who cares?

  2. Types of Bonding • Ionic • Covalent • Metallic Ionic Bonding: Covalent Bonding:

  3. Covalent Bonding Uses Valence Electrons

  4. Also called Lewis Dot Symbols

  5. How many valence electrons does a Si atom have? • 1 • 2 • 3 • 4 • 5 • 6 • 7 • 8

  6. Lewis Electron-Dot Structures:Describing Bonding in p-block compounds

  7. Interpreting Lewis Structures

  8. Drawing your own Lewis Structures

  9. How many total bonding electrons does an acetate ion have? 1. 3.5 • 7 • 8 • 10 • 12 • 13 • 14 • 15

  10. Why bother? Resonance Number of Bonds Molecular Structure Reactivity Lewis Structure Polarity Physical State and Properties Spectroscopy Hydrophilicity and phobicity

  11. Back to Drawing Lewis Structures I have an idea. Do what I say.

  12. Back to Drawing Lewis Structures

  13. Examples

  14. Examples with multiple bonds N2

  15. Examples: Exceptions to the Octet Rule ClF5

  16. Examples: Reading Organic Structures CH3CH3 CH3CN CHCCHCH2

  17. Draw the Lewis structure for SO3. How many lone pairs does it have? • 1 • 2 • 3 • 4 • 0

  18. Draw the Lewis structure for NO2-. How many lone pairs does it have? • 1 • 2 • 3 • 4 • 0

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