In the context of band theory, why do metals conduct electricity while insulators do not?
A.
Metals have overlapping valence and conduction bands
B.
Insulators have a larger band gap than metals.
C.
Metals have a completely filled conduction band.
D.
Insulators have a completely empty valence band.
Exam No：AP Chemistry Practice Test Year：2024 Question No：APChemistry2024AP0432
Answer:
A
Knowledge points:
3.2 Properties of Solids
Solution:
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