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The space between an atom's nucleus and it's electrons

  1. Jul 5, 2010 #1
    Earlier today I was thinking about what is in between the very few molecules of hydrogen floating around in interstellar space (dark matter?), and a question came to me.

    What is in the space between the nucleus of an atom and the electrons that surround that nucleus? The space would be too small for air molecules, so what is there?
  2. jcsd
  3. Jul 6, 2010 #2


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    Although in a QM sense, the electrons are in the gap just with a low probablility function
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