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I Hyperfine splitting and relative intensity of spectral lines

  1. Jun 28, 2016 #1
    What is the cause of hyperfine line splitting?
    I saw somewhere that it was because of spin quantum number and somewhere else that it was because of how electrons interact in the atom.

    And relative intensity of spectral lines?
    I'd assume it's due to the probability of electron jumps being more likely in the brighter looking lines and vice-versa.
     
  2. jcsd
  3. Jun 28, 2016 #2

    mfb

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    Did you check the wikipedia article?

    I don't think "electron jumps" are a good description, but it is related to transition probabilities, yes.
     
  4. Jun 28, 2016 #3
    what wikipedia article?
     
  5. Jun 28, 2016 #4

    blue_leaf77

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    It's because of the interaction between electron and the multipole moments (in most cases the magnetic dipole moment) of the nucleus. The multipole moment causes a perturbation to the electronic orbit in a form of magnetic field.
    Yes, that's a correct idea.
     
  6. Jun 28, 2016 #5

    mfb

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