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Homework Help: Estimate the energy difference

  1. Apr 24, 2010 #1
    1. The problem statement, all variables and given/known data

    Two parts to this one:

    (a) If the [itex]1s^2 ^1S[/itex] ground state and [itex]1s2s ^1S[/itex] excited state of [itex]He [/itex]has an energy separation of, estimate the energy difference between the same two states for [itex]Ne^{8+}[/itex].

    (b) The [itex]1s2s ^1S[/itex] and [itex]1s2s ^3S[/itex] states of [itex]He[/itex] have an energy separation of 0.8 eV. What would be the energy separation between these two states for [itex]Ne^{8+}[/itex]?

    2. Relevant equations

    3. The attempt at a solution

    I can only answer this question qualitatively, and poorly. In the case of Parahelium, where S=0 the energy difference would of course be larger, where in the case of Orthohelium where S=1 the energy difference would be smaller. But how can this be extended to [itex]Ne^{8+}[/itex]? For [itex]Ne^{8+}[/itex] there would be a stronger coulombic force between the electrons and the enormously charged nucleus, but quantitatively how would it be possible to do this? Very confused :(

  2. jcsd
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