Why does the orbital model consist of L-, K-, N-…shells if the location of the electrons cannot be predicted exactly?
I'm currently studying the orbital model, its origins, and its quantum mechanical background. What I still don't quite understand is this: If the model arises from the Schrödinger equation and its wave functions, why do shells even exist? Doesn't a shell contradict the quantum mechanical background of the model? Can't all electrons be anywhere? (Or…