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Homework Help: Quantum number in hydrogen atom

  1. Mar 6, 2017 #1


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    Gold Member

    1. The problem statement, all variables and given/known data

    2. Relevant equations
    Quantum mechanical model of atomic structure

    3. The attempt at a solution
    Why all sets are allowed?
    H atom only got one e- which only one orbital should be there, isn't it?
    If there aren't second or more e- , no second orbital or higher number of orbital, how comes there is higher number of shells (principle n) ? Hence as do the the number of angular momentum (l) for subshell and magnetic (ml) for the variety of orientation?

    I am a newbie to QM, who learnt only Bohr's model in high school.
    Thank you very much.
  2. jcsd
  3. Mar 6, 2017 #2


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    Staff: Mentor

    Electron can get excited. You are thinking in terms of the the lowest energy level it can occupy - which is not a bad starting point, but it is not a whole story either. When it gets excited it can jump up to any orbital, described by any set of valid quantum numbers.
  4. Mar 6, 2017 #3


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    Gold Member

    i see.
    thank you very much
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