Physics 780.04 Winter Quarter 2007 Dr. Herbst HOMEWORK ASSIGNMENT # 2DUE: WEDNESDAY, 31 JANUARY1. Bernath, page 153, Problem 10 2. Bernath, page 153, Problem 11 3. Use the simple independent electron model without electron-electron repulsion to calculate the three ionization potentials of lithium. Compare your results with experimental values. Can you think of a more appropriate independent-electron approximation? Hint: consider the possibility of electrons screening the nucleus from other electrons. 4. Bernath, page 153, Problem 8 5. Enumerate the Russell-Saunders term symbols for the terms (“multiplets”) arising from the configurations np4and nd2. Order these according to increasing energy. Explain why the terms for np4are the same as those for np2. Then enumerate the possible J values for the p4terms, label the states, and calculate the spin-orbit splittings in terms of A. 6. Determine and order the terms arising from the first excited configuration of nitrogen.
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