Chapter 1 Lecture Outline


9.1 Bonding Models and AIDS Drugs


9.2 Types of Chemical Bonds

  1. NaCl Ionic Bonding
  2. H-H Covalent Bonding
  3. Energy Diagram
  4. Overlapping orbitals
  5. Overlapping wave functions
  6. Sharing Electrons

9.3 Representing Valence Electrons with Dots


9.4 Ionic Bonding: Lewis Structures and Lattice Energies

  1. Reaction of Na (s) and Cl2 (g)
    1. Video( Internet © Saunders 1997)
    2. Animation( Internet © Saunders 1997)

  2. Molten Salt Conducts ( Internet © Saunders 1997)

  3. Cleave KBr crystal ( Internet © Saunders 1997)

  4. Solvation of KMNO4
    1. Video( Internet © Saunders 1997)
    2. Animation( Internet © Saunders 1997)

  5. Na(s) + Cl2(g) -> NaCl(s)

9.5 Covalent Bonding: Lewis Structures

  1. Cl2
  2. O2
  3. N2
  4. CH2O

9.6 Electronegativity and Bond Polarity


9.7 Lewis Structures of Molecular Compounds and Polyatomic Ions

  1. How to draw Lewis structures
    1. Fill Octet
    2. Periodic Table, Show number of bonds made by group
    3. Method 1
      1. Count valence electrons
      2. Make skeleton
      3. Add bonds
      4. Distribute remaining electrons as lone pairs
      5. Make double and triple bonds to fill valence
    4. Method 2
      1. Count number of electrons
      2. Determine electrons wanted
      3. share = want - have
      4. unshared = have - share
  2. Examples
    1. H2
    2. CH4
    3. NH3
    4. CH2O
    5. NH4+
    6. C2H4O2
    7. H2O
    8. H3O1+
    9. C2H4O
    10. XeO3
    11. F2
    12. PCl5
    13. NO2
    14. NO3
    15. Cl2
    16. O2
    17. N2
    18. C2F2Cl2
    19. C6H12
    20. C6H6

    9.8 Resonance and Formal Charge

    Formal Charge = VE - 1/2 BE - NBE


    9.9 Exceptions to the Octet Rule: Odd-Electron Species, Incomplete Octets, and Expanded Octets

    1. XeO3
    2. XeF2
    3. XeO4

    9.10 Bond Energies and Bond Lengths


    9.11 Bonding in Metals: The Electron Sea Model


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