A conductor is a material where valence electrons are free to move to the conduction band. The atom's conduction band is partially filled with electrons and this permits the conduction of mobile electrons.
Fischer-Cripps. A.C., The Electronics Companion. Institute of Physics, 2005.
Roulston. David. J., An Introduction to the Physics of Semiconductor Devices. Oxford University Press, 1999.
Copyright © 2014 Barry Watson. All rights reserved.