As I understand it, Schrodinger's wave equation predicts the allowable energy states an electron can have under the electromagnetic forces of a given nucleus (and I assume other 'orbital' electrons). If I understand correctly the change of electron state therefore has a 'quantum' difference of energy that is released (if the electron changes to a lower energy state). Schrodinger's equation simply gives the quantity of the energy difference.
What causes this expressed energy to become/be electromagnetic? Has the electron or its charge been 'jerked' in space in some oscillatory fashion (congruent with Heisenberg's uncertainty principle) by the energy loss, as is the method to create lower frequency electromagnetic emissions in an antenna? Has the electron spin fluctuated to initiate an electromagnetic emission? Is the 'orbital energy state' of the electron somehow a non-propagating (stationary) electromagnetic energy that lets some of its energy 'loose' when the electron changes state to another non-propagating electromagnetic energy state?
What is causing the conversion of the energy to be electromagnetic (a photon)?
To put it in a nutshell, when an electron changes energy states, why does it emit energy in the form of a photon as opposed to anything else?
Thank you for your time to respond and my apologies in advance if there is a commonly understood answer to this ... :-|