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valence band

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noun
QUIZ
SHALL WE PLAY A "SHALL" VS. "SHOULD" CHALLENGE?
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Which form is used to state an obligation or duty someone has?
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How to use valence band in a sentence

Scientific definitions for valence band

valence band

The outermost electron shell of atoms in an insulator or semiconductor, in which the electrons are too tightly bound to the atom to carry electric current. Compare conduction band. See also bandgap.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
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