Why is glass transparent? More details below.

[LogicalAcid]

I have always thought glass was reflective because all visible light falling upon it was absorbed, and only very little was reflected and able to make contact with our retinas, to little to be noticed, therefore making it transparent. I believe the opposite happens to mirrors, most of the visible light falling upon it is reflected, and very little is absorbed. I know the whole concept of "If a photon hits an atom, the electrons in the atom jump an orbital, but eventually they fall back down and release the excess energy in the form of photons, the higher the orbital they "fell" from, the higher the frequency of the photon emitted. But apparently it has to do with Valence electrons as well, which I haven't had time to study for (I have many High Schools looking out for me, I want to stay with good grades), so I want to get down to the very most detailed reasons of why glass is transparent.

 

[nyxynyx]

I believe it has to do with Mott's work.