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If something becomes an ion, is its zeff changed?

  1. Mar 13, 2012 #1
    If some atom loses or gains an electron, is its effective nuclear charge changed? I would think that it would change, considering that having lost an electron the shielding effect weakens, making the zeff larger, but people are saying there is no effect? Is there some explanation?


  2. jcsd
  3. Mar 14, 2012 #2


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    Staff: Mentor

    Try to calculate Zeff using Slater's rules.
  4. Mar 14, 2012 #3


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    Science Advisor

    A simple counter example may also help. Consider He. In neutral He, the effective charge is somewhere between 1 and 2, while in He^+ it is exactly 2.
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