Is it true that most photons are absorbed by electrons and most photons are generated in the nucleus?

Question

Photon generation occuring by a close encounter of an electron with a nuclear positron where a little piece of each breaks off to form the photon.

Answer 1

A photon is produced whenever there are accelerating charges. Photons of light are emitted when electrons change their states from excited (high energy) to ground (normal levels).

In a way, what you said is correct, but for only certain kinds of photons. For instance, electrons absorb and emit photons of visible light., as well as a few radio waves and microwaves. Higher-energy photons, like gamma rays and high-end X-rays, ear produced when there is a change of energy tate within the nucleus. The change will bring about a large acceleration of a charge (in gamma radiation, the emmision of a positron or an electron). Whatever the cause, the energy of the photon is related to the energy lost by the charge due to its acceleration.

Answer 2

Not exactly.

Photons in the visible part of the spectrum are generated by electrons in the outer regions of the atom. However electrons can both absorb and generate photons, depending on the situation.

When an electron drops from a higher orbit to a lower orbit, a photon is released that has an energy equal to the difference in the energy between the orbits to conserve energy and retain the natural balance of energy.

Very high energy photons like gamma rays generally come from the nuclear region of the atom, especially when a subatomic particle penetrates it.

Essentially, visible light is produced by 'vibrating' electrons.

An ultraviolet (UV) light causes electrons in various phosphors to jump to a higher orbit. After the energy dissipates, the electron drops back into its original lower orbit and in the process, emits a photon equal in energy to the energy between the orbits. This produces a glowing effect when the UV light strikes fluorescent paints as used in some posters.

Intense heat causes electrons to do the same thing, vibrate between orbital states, which is why something like an iron bar glows red when heated.

For photons to originate from the nucleus, it takes fision, fusion or extreme heat in the millions of degrees. Otherwise, the light originates in the outer electron shells.
 

Answer 3

No, not really.
Photons are emitted and absorbed by both electrons and the nucleus. They are emitted when a electron, proton, or neutron drops from a high energy orbital to an orbital of lower energy. When it occurs in the nucleus stronger forces are involved and higher energy photons (gamma rays) are emitted.

Absorption is just the reverse process. The photon is absorbed by a particle causing the particle to jump to a higher energy level.

Answer 4

Photons are actually generated int he outer shlles (electorns) when they jum from one energy level to the other, the energy is released in photons. I would agree that they are also absorbed by the electrons since their absorption is what allows the electrons to gain energy for these jumps.

A positron is an anti-particle and not necessary for these everyday things you are talking about. Your quote is correct, but they are created in machines for medical uses, but not in everyday interactions.

"A positron may be generated by positron emission radioactive decay, or the interaction of photon with a charged particle (such as an atom's nucleus) with energy greater than 2mec2 = 2×0.511 MeV = 1.022 MeV"

1 MeV is pretty big, sorry, I can't put it into everyday terms, but it's 1 million volts.

Answer 5

naa....photon is produced when an electron jumps from a higher shell or sub-shell to a lower... it loses energy n dis energy occurs in form of photon.
also during nuclear stablization the neutron converts into a positron or a electron...then also photon emmission takes place.
i dont think electron absorbs photon when they jump from a lower shell to higher.. they absorb energy..not defined which form.

Answer 6

No.


Doug