Beta Decay of He3 Atom: Electron Emission vs. Shell Occupancy

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Discussion Overview

The discussion revolves around the beta decay of the He3 atom, specifically focusing on the emission of an electron and the implications for electron shell occupancy. Participants explore the energy dynamics involved in the decay process and the resulting electron configuration of the atom.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification

Main Points Raised

  • One participant questions whether the He3 atom is left with only one electron after decay, noting that the decay products are an electron and an antineutrino.
  • Another participant suggests that the decay electron is emitted with significantly more energy, allowing it to escape rather than occupy the lowest electron shell.
  • A third participant confirms that the energy released during the decay is in the keV range, while the binding energy for electrons is in the eV range, implying a substantial energy difference.
  • One participant proposes that the difference in energy levels relates to the distinction between chemical and nuclear reactions.
  • A later reply succinctly agrees with this characterization of energy differences.

Areas of Agreement / Disagreement

Participants generally agree on the energy dynamics involved in the beta decay process, but there is no consensus on the implications for electron occupancy in the He3 atom.

Contextual Notes

Limitations include the lack of specific numerical values and the dependence on the definitions of energy levels in nuclear versus chemical contexts.

Who May Find This Useful

Readers interested in nuclear physics, atomic structure, and the mechanisms of beta decay may find this discussion relevant.

Xavius
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Does this decay leave the He3 atom with only one electron? The only decay productsas far as I can tell are the electron and antineutrino, so it seems like the atom would only retain the original H3 electron.

Now if that's the case, why is the beta decay electron emitted rather than fitting into the lowest electron shell?
 
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I don't have the specific numbers. However I believe the decay electron is emitted with a lot more energy and therefore escapes. The He3 nucleus picks up a swtray electron.
 
Correct. Energy released in the process is in the keV ranges. Binding energy for electron is going to be in the eV ranges.
 
So essentially it's the difference in energy between chemical and nuclear reactions?
 
In short, yes.
 

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