In terms of band theory, what is the dif | Class 12 Chemistry Chapter The Solid State, The Solid State NCERT Solutions

Question:

In terms of band theory, what is the difference

(i) Between a conductor and an insulator

(ii) Between a conductor and a semiconductor

Answer:

(i) In a conductor the energy gap is either very small or there is overlapping between valence band and conduction band. In case of an insulator the energy gap between valence band and conduction band is very large. Due to which, when an electric field is applied to an insulator, the electrons cannot jump from valence band to conduction band, hence poor or no conduction of electricity.

(ii) In a conductor, the energy gap between valence band and conduction band is very small but in an semiconductor there is always a small energy gap between them.


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Welcome to the NCERT Solutions for Class 12 Chemistry - Chapter . This page offers a step-by-step solution to the specific question from Excercise 2 , Question 22: In terms of band theory, what is the difference (i) Between a conductor and an insulator (ii) ....