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Calculating Ionization Energy

  1. Oct 23, 2011 #1
    Hello all-

    I am working to calculate the value of I3 for Li. I am working through the formula:


    Can anyone tell me what n is equal to? I had originally set n=3 since I am looking for I3, but it was marked incorrect as n should have been set at 1. I'm not sure why in this case

    Thanks in advance.
  2. jcsd
  3. Oct 23, 2011 #2


    User Avatar

    Staff: Mentor

    Do you know Rydberg formula?
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