Week 10: Section B
Molecular Bonding! This week we will build on what we’ve learned about valence electrons in chapters 6 and 7 in order to understand how atoms connect to form molecules. We will start with ionic bonding which builds directly out of concepts of ionization and electron affinity from chapter 7. Then we will master drawing Lewis structures, including learning to draw resonance structures and learning when it is ok to break the octet rule. By the end of the week we will be able to relate Lewis structures to bond strengths and to enthalpies of reactions.
Homework #9 covers chapter 7. It is due on Mastering Chemistry at midnight on Wednesday.
Monday Lecture Materials: Lecture Slides 11-5, class notes 11-5
Wednesday Lecture Materials: Lecture Slides 11-7, class notes 11-7
Friday Lecture Materials: Lecture Slides 11-9, class notes 11-9
| Week 10 | Sat 11/3 Sun 11/4 | Mon 11/5 | Tue 11/6 | Wed 11/7 | Thu 11/8 | Fri 11/9 |
| In Class | Chapter 7 and 8 | Chapter 8 | Chapter 8 | |||
| Learning Objectives | Relate electron configurations to periodic trends and observed exceptions to the trends. | Write lewis structure for molecules. Use electronegativity to categorize bonding types. Use formal charges to identify the best lewis structure. | Identify when resonance structures or exceptions to the octet rule are necessary to define bonding. | |||
| Topic | Electron Affinity, Exceptions to Periodic Trends, Ionic Bonding | Covalent Bonding, Bond Polarity, Lewis Structures | Lewis Structure, Resonance Structures, Exceptions, Bond Enthalpy | |||
| Outside of Class | ||||||
| Homework | Homework #8 is due at 11:59pm | Work on homework #9 | Homework #9 is due at 11:59pm | Work on Homework #10 | ||
| Reading | 1st read of chapter 8 | 2nd read of chapter 8 | ||||
| Other Things to Remember | Office Hours 2:30-4:00 | Office Hours 1-2:30 | ||||
| Practice Problems | 8.7, 8.9, 8.17, 8.19, 8.20 | 8.33, 8.35, 8.41, 8.45, 8.49 | 8.55, 8.56, 8.63, 8.65, 8.69, 8.71 |