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Problem

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Textbook Expert
Textbook ExpertVerified Tutor
28 Nov 2021

Given information

The substance given are as follows:

 

Step-by-step explanation

Step 1.
According to band theory, a good conductor will have no or a small bandgap between the valence and conduction bands. In the valence band, all electrons are present.
 
The electrons in the valence band can readily travel towards the conduction band if there is no or a small gap between the two bands, allowing electricity to flow.
 
As a result, a good conductor will have no or a small gap between the valence and conduction bands.

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