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Helium atomic stucture

  1. Aug 23, 2014 #1
    Would helium take less time to ionize than air, because it expand faster when heated up?
  2. jcsd
  3. Aug 23, 2014 #2

    Simon Bridge

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    I'd expect some of the air to start to ionize before helium does but that Heluim will become a plasma sooner.
    Look at the composition of air compared with helium gas, and the ionization energies.
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