CHEM 342. Spring 2002. Next PS Previous PS Answers PS#5.doc (Word97)
Problem Set #5
Note: Relevant Chapters in Mortimer are Chapters 17 and 18. BornOppenheimer Approximation 1. What is the main assumption of the BornOppenheimer approximation? 2. Using the BornOppenheimer approximation, write the Hamiltonian for the H_{2} molecule (2 electrons).
Variation Method; LCAOMO 3. Determine the energy for in terms of H_{aa}, H_{ab}, and S using the variation method.
Normalization; Hybrid Orbitals 4. Show that the sp^{2} hybrid orbital is normalized if the s and p orbitals are also normalized.
Electronic Configuration for Atoms & Molecules; Pauli Exclusion Principle 5. What are the electron configurations for ? 6. Which of the following transitions are allowed in the normal electronic emission spectrum of an atom
7. Write the electronic configurations for N_{2}, N_{2}^{+}, N_{2}^{}.
Term Symbols for Diatomics; Electronic Transitions 8. Determine the complete term symbol for each of the following electronic configurations 9. Write the electronic configuration for Li_{2}, and predict the term symbol for the ground level. 10. Which of the following electronic transitions are allowed? 11. The groundlevel term for a heteronuclear diatomic molecule is . Write the term symbols of the electronic transitions allowed for this molecule. PLEASE NOTE

