|MadSci Network: Physics|
I have been reading about atoms absorption and emission of photons and have come across some possible contradictions that I was wondering if you would clarify. I have read that if an atom is excited by a photon with a frequency and wavelength equal to an electron energy and gap it will excite the electron to a higher orbital. Then after about ~10 nanoseconds it will decay and emit a photon of equal wave length/frequency/energy. I was wondering if this emission is the same wave length, frequency, energy as the absorbed wavelength. The atom is not part of a molecule and for example it is a copper or iron atom. I have read that there is secondary loses that could be associated with atom recoil, vibration (Dissipation as heat). So I was wondering if given a plate of iron or copper that has a light beam shined at it where the photons excite the atoms to jump the band gap, is the emission (one emission out of metal plate, the other into a adjacent atom) the same in as out (any lost energy)? Thanks
Re: Atom Photon Absorption and Emission Energy
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