What is the reason for energy bands in solids?
The Attempt at a Solution
because of close proximty of atoms
Something like that... I'd phrase it like so: an energy band is a range of energies in which there are a large number of closely spaced energy levels and which is bounded above and below by "forbidden regions" with no energy levels, such that the forbidden regions are large compared to the interlevel spacing within the energy band.is this correct?
An energy band is a continuous distribution of similar energy levels?