Question

There are energy bands in a solid. Do we have really continuous energy variation in a band ro do we have very closely spaced but still discrete energy levels?

Answer 1

Answer:

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Answer 2

There are energy bands in a solid, however, the energy levels in the band are always discrete.

• Every energy band is made by splitting of one or more concentrations of the atomic energy. The minimum number of states in a band equals twice as many atoms in the material.
• A solid consists of a combination of energy levels closely lined together.
• Such levels of energy are confidential but they have a very small energy difference between two consecutive levels so they are reffered as a band and the band's energy levels are discrete.