The ionization energy of an atom is known to be 5.5 eV.
Chapter 41, Problem 41.73(choose chapter or problem)
The ionization energy of an atom is known to be 5.5 eV. The emission spectrum of this atom contains only the four wavelengths 310.0 nm, 354.3 nm, 826.7 nm, and 1240.0 nm. Draw an energy-level diagram with the fewest possible energy levels that agrees with these experimental data. Label each level with an appropriate l quantum number. Hint: Dont forget about the l selection rule.
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