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H- and HII ions

  1. Dec 14, 2004 #1
    what is the reason why the number of H- ions in a gas must always be less than the number of HII ions?
     
  2. jcsd
  3. Dec 15, 2004 #2

    Labguy

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    Gas where? Do you mean in a star or interstellar space? Depends on the temperature.
     
  4. Dec 16, 2004 #3

    DB

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    My best guess is that you need more energy to ionize atoms, and more energy can mean more mass, therefore more atoms. Just a guess.
     
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