Chem 226 - Exam #1 (2000) Answers

#1.
- a.i.) Hg(I) 4077.83 ³P₁ - 7¹S_{0
  
  or}
- a.ii.) Hg(I) 7644.94 Å: 6¹S₀ - 6³P_{1
  
  Plus others - these two violate the selection rule that prohibits transitions in which there is no change in S.}
- b.) Hg(I) 1849.57 Å: 6¹S₀ - 6¹P₁
- c.) 6³P₀ or 6³P₂ or . . . others!
- d.) 1.20 x 10³ Å
- e.) Blackbody radiation or free-free electron transitions
#2.
- a.) 3.1428 eV
- b.) Doppler = 3.8 x 10^-2 Å >> 8.2 x 10^-5 Å = natural linewidth
- c.) Arc/Spark: Pressure broadening predominates (linewidth ~ 0.1 Å)

Chemistry 226