Ch 1: Covalent bonds and Shapes of Molecules

1. Introduction
2. Molecular structure
   1. Illustration: deconstructing methane
   2. A chemist's representation of methane structure
      1. Rotatable structure
      2. Wedge-dash drawing
   3. Review of the electronic structure of atoms
      1. Examples: Ne and C
      2. Atomic orbitals (location probability clouds)
      3. s and p orbitals
      4. s and p orbitals (another view)
      5. Orbital occupancy and periodicity
      6. Top part of the periodic table
3. Bonding theories
   1. Lewis model
      1. Example: filled outer shells
      2. Formal charge
      3. Multiple bonds
      4. Lewis structures with Sulfur or Phosphorous
   2. Quantum mechanical bonding issues
      1. Molecular orbitals
      2. Sigma (σ) vs. pi (π) bonds
   3. Shapes of Molecules
      1. VSEPR predictions - overview with rotatable images
      2. Hybrid atomic orbitals - methane example
      3. Hybrid orbitals summary
   4. Bonding concepts
      1. Ionic vs. covalent bonds
      2. Electronegativity and bond polarity
      3. Resonance
      4. Relative importance of resonance structures
   5. Functional group concept
   Skip Section 1.3 (Functional Groups).
   Section 1.10 (Bond Lengths and Strengths) will be discussed in Chapter 5 lectures.