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Orbital/Spin angular momentum + magnetic quantum numbers

  1. Nov 22, 2017 #1
    1. The problem statement, all variables and given/known data
    A single electron atom has the outer electron in a 4f1 excited state. Write down the orbital and spin angular momentum quantum numbers and the associated magnetic quantum numbers for this state.

    2. Relevant equations
    I don't think there is any relevant equations. I think it comes purely from the fact it's in a 4f1 excited state.

    3. The attempt at a solution
    I originally thought it was l=3 for the orbital angular momentum quantum number, as I read that's what it is for "f". However, I am thrown off by the fact it's 4f1.

    Thank you.
     
  2. jcsd
  3. Nov 23, 2017 #2

    Charles Link

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    Homework Helper

    The subscript "1" should be the ## J ## value, but ## J=1 ## is not possible. I believe the 4 is the principal quantum number ## n ##. Meanwhile you can always say ## s=1/2 ##. They are also asking what values ## m_l ## and ## m_s ## can have.
     
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