Talk:Energy band

ENERGY BAND STRUCTURES IN CRYSTALS EXPLANATION IN BRIEF: WE know that an atom is made up of electrons in various shells. when two atoms come together the valence shells only interact.In an atom there are numerous atoms.hence valence shells containing valence electrons interact with each other to form the VALENCE BAND. Similarly, the conduction electrons that r in the conduction shells( that are placed above the valence shells) interact to form the CONDUCTION BAND. NOTE: SINCE THE CONDUCTION SHELL IS ABOVE THE VALENCE SHELL, THE CONDUCTION BND IS ALSO PLACED ABOVE THE VALENCE BAND.