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Is the following atom stable?

  1. Mar 17, 2012 #1
    Is it possible to replace one of the electrons in a heavy atom like uranium with an Antiproton and form a stable atom?
  2. jcsd
  3. Mar 17, 2012 #2


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    Staff: Mentor

    I'm pretty sure that would be highly unstable.
  4. Mar 17, 2012 #3
    I also think it would be unstable. In the S state the orbital overlaps with the nucleus. Electrons have been replace with muons to form metastable atoms.
  5. Mar 21, 2012 #4
    Don't forget that protons are much heavier then electrons, so from a mass perspective, the wavefunctions would be completely different. But also, antiprotons would annihilate the first protons they came across, including in the nuclei, and even stable wavefunction states overlap with the nucleus, which is what M Quack is getting at. An antiproton bound to an antielectron (antihydrogen) is stable.
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