Atom emitting more than one frequency at the same time

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Discussion Overview

The discussion centers on whether a single atom can emit more than one frequency of light simultaneously due to multiple electron transitions between energy levels. It explores the implications of timing and measurement accuracy in these transitions.

Discussion Character

  • Exploratory, Technical explanation, Debate/contested

Main Points Raised

  • One participant questions if multiple electrons can transition between shells at the same time and whether this leads to the emission of multiple frequencies.
  • Another participant suggests that while multiple transitions can occur, the timing of these events is crucial, indicating that events cannot happen simultaneously if measured with very small time intervals.
  • A third participant notes that during the emission process, energy is released corresponding to the transition.
  • It is proposed that an atom can emit two or more photons during a transition, with the condition that the sum of their energies equals the transition energy, citing hydrogen's decay from the 2S excited state as an example of emitting two photons.

Areas of Agreement / Disagreement

Participants express differing views on the timing and nature of multiple transitions and emissions, indicating that the discussion remains unresolved regarding the specifics of simultaneous emissions and the implications of measurement accuracy.

Contextual Notes

There are limitations regarding the definitions of "simultaneous" events and the dependence on measurement intervals, which may affect the interpretation of the claims made.

granpa
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in a single atom can more than one electron be transitioning between electron shells at the same time? can the atom be emitting more than one frequency at the same time? or is there some rule against this?
 
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There can be multiple unrelated transitions in an atom.
At the same time depends on how accurately you want to measure - ultimately two events can't happen at the same time if you use small enough intervals of time.
(ie do you mean within a microsecond, nanosecond, femtosecond .etc of each other)
 
during the time that the atom is emitting (as light) the energy released by the transition.
 
It's possible for an atom to emit two (or more) photons during a transition between energy levels. The photons have different wavelengths (in general), the requirement is the sum of their energies equals the transition energy.

If I remember correctly, hydrogen in the 2S excited state decays primarily by emitting 2 photons.
 

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