Electronic band structure

In solid-state physics, the electronic band structure describes the ranges of energy levels an electron can or cannot possess. Band structure is responsible for the electrical properties of a metal, such as electrical resistivity, and optical absorption.
References.
Kittel, Charles (2005). "". Wiley. ISBN &lt;bdi&gt;0-471-41526-X&lt;/bdi&gt;.
"Band Theory for Solids". Retrieved 2021-10-06
"Band Theory | Definition, Explanation, &amp; Facts". "Encyclopedia Britannica".