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Electron energy

  1. Aug 27, 2010 #1
    Why do electrons have more energy the further they are from the nucleus?
     
  2. jcsd
  3. Aug 27, 2010 #2
    Why is that weird? Planet orbiting a sun has more energy as it is more distant.
     
  4. Aug 27, 2010 #3
    I didn't say that it's weird. I want to know why that is and your response does not explain anything.
     
  5. Aug 27, 2010 #4
    the statement is false because the charge of electron is constant the statement have to be
    why more energy is needed to take out electron from inner shell?
    or
    why electrons on the outer shell need more energy to keep them there?
     
  6. Aug 27, 2010 #5
    Let me rephrase and see if it helps. Why are electron shells further from the nucleus said to be higher energy level shells? I was thinking that perhaps it is because more electrons are generally held in the outer shell, but I believe this is also true when number of electrons in shells are equal.
     
    Last edited: Aug 27, 2010
  7. Aug 27, 2010 #6

    alxm

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    Electrons are negatively charged, the nucleus is positively charged.
     
  8. Aug 27, 2010 #7
    How does this result in higher energy levels further out?
     
  9. Aug 27, 2010 #8

    alxm

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    The potential energy is 1/r. It takes energy to move an electron from the ground state to an excited state farther out.
     
  10. Aug 27, 2010 #9
    Thanks. That makes sense now.
     
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