Multiple Choice
An unfilled electron state in the valence band is called
A) a hole.
B) an empty electron.
C) a conduction electron.
D) a positron.
E) an empty positron.
Correct Answer:

Verified
Correct Answer:
Verified
Related Questions
Q1: The vibrational frequency of an HF molecule
Q2: The energy gap between the valence and
Q3: If one metal has double the number
Q4: A diatomic molecule has 18 × 10<sup>-5</sup>
Q5: A diatomic molecule is vibrating in its
Q7: If a metal had a Fermi level
Q8: A certain diatomic molecule emits a photon
Q9: In a p-type semiconductor,a hole is<br>A) a
Q10: A metal has a Fermi level (energy)of
Q11: When a certain diatomic molecule undergoes a