The following figure show\'s the energy level diagram of sodium, showing some tr

Question

The following figure show's the energy level diagram of sodium, showing some transitions (labeled with wavelength values in nm) in the optical region. The energy of the 3s level is -5.20eV. When two wavelengths are listed, it indicates two closely spaced lines - a doublet. In such case, use the average of the two numbers List the all the possible downward transitions that an electron in the 5p state can make. Use the appropriate spectroscopic notation to indicate the transitions, like. 3d rightarrow 3p. Calculate the energy difference of the 5d and 6s states.

Explanation / Answer

a)    5p -> 5s

       5p   -> 4d ,   4p ,   4s

       5p   ->   3d , 3p , 3s

b)    energy difference = 13.6 * 112 * (1/52 - 1/62)

                                  = 20.112 eV

c) ionization energy of 4s state =   13.6 * 112 * (1/42)

                                                      = 102.85 eV

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