Question

explain electron emission along with its unit and define work function​

Answer 1

Metals have free electrons that can move from one atom to the other within themetal. ... This minimum amount of energy is known as the work function of themetal. And when the work function is provided to the metal, the consequent liberation of electrons from the metal surface is known as electron emission.

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Answer 2

Answer:

Electron emission is defined as a phenomenon of liberation of electron from the surface that is stimulated by temperature elevation, radiation, or by strong electric field