Question

Explain forbidden band.​

Answer 1

Answer:

In crystalline crystals, the forbidden band is the region between the conduction and valence bands where electrons are not permitted to stay. The forbidden band divides the conduction and valence bands by a distance (energy) known as the band gap.

Explanation:

• Free electrons are what they're called. They are known as conduction electrons because they are responsible for current conduction in a conductor.
• The conduction band is the region inhabited by these electrons.
• The prohibited energy gap is the space between the valence and conduction bands.
• The theory of a valence electron travelling in a periodic potential field of a crystalline lattice is known as energy band theory.
• A discrete energy spectrum indicates that single atoms can only occupy discrete energy levels.
• In a non-excited state, some of these energy levels are filled with electrons.