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Unformatted text preview: allowed energy levels are correct by showing that the experimental wavelengths of photons emitted by He+ agree with your calculations. (the CRC Handbook of Chemistry and Physics is one source. Please note that spectroscopists label neutral helium as "He I" and the singly-charged helium ion as "He II"). For the observed wavelengths of light emitted by He+, determine the initial and final quantum numbers that are responsible for each wavelength. For example, if E2-E1 = 40.9 eV, the transition will yield a photon with lambda = 0.0303 microns or 303 Angstroms. Some small numerical errors should be expected. 3. Problem 1.2, Text. 4. Problem 1.5, Text. 5. Problem 1.6, Text. 6. Tell me: a. What is your background in semiconductor devices. b. What is your area of study or particular interest in semiconductor devices....
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- Spring '11