Question

What is the valence band and the conduction band in a solid?

Answer 1

Valence band contains valence electrons where these electrons tends to jump towards the conduction band when voltage is applied.when these electrons move towards the conduction band thus due to the movement of the electron conduction takes place.

Answer 2

1. Conduction band:

→The highest energy band formed bye interaction of the outermost energy level of closely spaced atoms in solids is called the conduction band

2. Valence band:

→the band having lower energy than conduction band is the valence band. the electrons in valence band are not free to move because they are tightly bound to the respective nuclei.