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Rev

$\begingroup$ So basically as I understood there is one thing that we know for sure that if and only if the energy of photon is equal to an energy level transition of an atom the absorption will occur. And when the energy is less or more one of 2 things can happen. And what exactly would affect photon to go with a) or b) or it is something that is not possible determine which is actually even worse. As far as I can understand it has something to do with the atom(molecule) itself? $\endgroup$
– Ed C
Commented Dec 2, 2016 at 11:42
2

$\begingroup$ @EdwardChopuryan not exact but within the width of the energy state. It is a matter of boundary conditions and probabilities for the specific problem as well as the energy of the photon; there will be a calculable probability for elastic scattering, and another one for compton like scattering ( inelastic with loss of energy). What happens to a specific photon is a matter of probabilities. $\endgroup$
– anna v
Commented Dec 2, 2016 at 15:55

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