Radioactive decay of Carbon 14

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Discussion Overview

The discussion centers on the radioactive decay of Carbon-14 into Nitrogen-14, specifically focusing on the electron dynamics during beta decay and the resulting electron configuration of the Nitrogen atom. Participants explore the mechanics of beta decay and the implications for the number of electrons in the resulting atom.

Discussion Character

  • Exploratory, Technical explanation, Conceptual clarification, Debate/contested

Main Points Raised

  • One participant questions the number of electrons remaining with the Nitrogen atom after the decay, suggesting it would have five electrons left.
  • Another participant clarifies that during beta decay, a neutron transforms into a proton, an electron, and an antineutrino, indicating that the electron is not one of the original orbital electrons.
  • A different participant notes that the electron released during beta decay typically escapes the atom, leaving it ionized, and that the Q-values of the decay are generally much larger than the binding energy.
  • It is mentioned that the Nitrogen atom initially retains the same number of electrons as the Carbon atom, which is six, and that it may quickly gain an additional electron from the environment to become neutral.
  • One participant challenges the misconception that the released electron is an orbital electron, asserting that it is created in the nucleus and that the Nitrogen atom would generally have six electrons left, assuming it is neutral.

Areas of Agreement / Disagreement

Participants express differing views on the number of electrons remaining with the Nitrogen atom post-decay, with some asserting it retains six electrons while others suggest it may initially have five. The discussion remains unresolved regarding the implications of the decay process on the electron configuration.

Contextual Notes

There is a lack of consensus on the interpretation of the electron dynamics during beta decay and the subsequent electron configuration of the Nitrogen atom. Assumptions about the neutrality of the atoms and the behavior of the released electron are not fully explored.

Electroguru
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Alright, a very simple question here. I am reading about nuclear decay of Carbon 14 into Nitrogen 14. I understand how one electron is released and subsequently one neutron turns into a proton, but I am curious about how many electrons are left with the Nitrogen atom. I want to believe five, as that Carbon 14 would have had 6 initially. Is this correct?

I believe my root problem here is that I don't thoroughly understand beta
decay.

Any body want to share some insight?
 
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Electroguru said:
I understand how one electron is released and subsequently one neutron turns into a proton,
One neutron turns into a proton plus an electron plus an antineutrino. The electron and the antineutrino are created in the decay.
 
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Note that the electron (or positron) in a beta decay will generally escape from the atom, leaving an ion behind. The Q-values are typically much larger than the binding energy.
 
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The nitrogen atom initially has the same electrons as the carbon atom had - 6. Typically it will quickly collect an electron from the environment to become a neutral nitrogen atom with 7 electrons.
 
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Your basic misconception is I think that the electron released via the nuclear reaction is one of the orbital electrons of the original C14 atom. It is not; it is created in the nucleus and flies off, although it may potentially disturb the orbital electrons, that is not the rule. Generally speaking there would be 6 electrons left (assuming a neutral atom). The N14 atom would later presumably gain the 7th electron somehow.
 

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