4. Label the following energy level diagrams using the appropriate type of conduction term (insulator, metal,...

Question

Question

Answer 1

Answer #1

1)

In metal , conduction and valence bands overlap.

So, there is free flow of electrons.

1 is Metal.

In insulators, there are large energy gap between conduction and valence bands.

So, electron can’t move from valence band to conduction band.

Thats why insulator do not conduct electricity

3 in insulator.

Semiconductor have medium difference in energy between conduction and valence bands.

2 is Semiconductor

Answer:

1 -> metal

2 -> Semiconductor

3 -> insulator

Answer 2

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