If an element has a band gap of 1 eV between a filled valence band and an empty conduction band, it would be classified (at room temperature) as a(n)
A) insulator.
B) conductor.
C) resistor.
D) semiconductor.
E) reactor.

Question

Quizplus · Accepted Answer

A band gap of 1 eV is characteristic of a semiconductor. Insulators have larger band gaps (>3 eV) while conductors have no band gap. Resistors are materials with a high electrical resistance, but their band gap is not relevant for their classification. "Reactor" is not a valid classification for materials based on their band gap.

If an Element Has a Band Gap of 1 EV