The Mystery of Atoms Releasing Photons: A Scientific Exploration

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Discussion Overview

The discussion explores how atoms release photons, focusing on the mechanisms involved, particularly the role of electron transitions between energy levels and the potential involvement of nuclear processes. It encompasses theoretical and conceptual aspects of atomic and quantum physics.

Discussion Character

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

Main Points Raised

  • One participant questions whether energy stored in the nucleus is converted into light energy when photons are emitted.
  • Another participant explains that electrons emit photons when transitioning from higher to lower energy levels, with the emitted photon’s energy matching the energy difference between these levels.
  • It is noted that while electrons can emit photons, the nucleus can also release photons, but typically at much higher energy levels, resulting in photons with energies above 100,000 electronvolts.
  • A participant asks about the triggers for electrons to release excess energy, suggesting that electrons in higher energy levels may have a tendency to transition to lower energy states.
  • One participant introduces the idea that the absorption of a photon leads to its annihilation, and the subsequent emission represents the creation of a photon, indicating a quantum perspective.
  • Another participant emphasizes that the discussion involves quantum concepts, distinguishing it from classical physics.

Areas of Agreement / Disagreement

Participants express differing views on the mechanisms of photon emission, particularly regarding the roles of electron transitions and nuclear processes. There is no consensus on the specifics of what triggers these emissions or the implications of quantum mechanics in this context.

Contextual Notes

Some statements rely on assumptions about energy levels and the nature of photon interactions, which may not be fully explored or agreed upon in the discussion.

Who May Find This Useful

This discussion may be of interest to those studying atomic physics, quantum mechanics, or anyone curious about the processes involved in photon emission from atoms.

Physicist50
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I was wondering, after discovering that in particular scenarios atoms can release photons, how they do it? Is some of the energy stored in the nucleus converted into light energy, or is it something else?
 
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Typically it is that the electrons drop from higher energy levels to lower energy levels. In order to do so they have to get rid of the excess energy, and can do so by emitting a photon whose energy exactly matches the difference in energy levels. So if the difference between the higher energy level and lower energy level is 2.0 electronvolts, a photon with 2.0 electronvolts will be emitted, which is within the visible range in the orange-yellow end of the spectrum.

The nucleus can do the same thing however, but because the energy levels for particles in the nucleus are MUCH higher, the emitted photon has MUCH more energy, typically above 100,000 electronvolts.

The key thing to understand is that the energy comes from BINDING energy.
http://en.wikipedia.org/wiki/Binding_energy
 
Thanks Drakkith, but what would cause an electron to suddenly give off a spurt of excess energy?
 
when a photon gets absorbed by atom ,it just disappear (annihilation operator). when it comes back it only mean a creation of photon(it is not inside the atom).
 
Physicist50 said:
Thanks Drakkith, but what would cause an electron to suddenly give off a spurt of excess energy?

Electrons that are in higher energy levels, that also have lower energy levels available to them, simply have a chance of changing levels and emitting energy. You could say they "want" to be in the lowest energy state.
 
this is not classical physics as photons are a quantum concept, same with energy levels.
 
chill_factor said:
this is not classical physics as photons are a quantum concept, same with energy levels.

No worries, a mod will move the thread if they feel like it. :biggrin:
 

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