Electronvolt
An electronvolt (eV) is a unit of energy commonly used in physics and chemistry. It is defined as the amount of kinetic energy gained or lost by a single electron when it accelerates through an electric potential difference of one volt.
About
It is defined as the amount of kinetic energy gained or lost by a single electron when it accelerates through an electric potential difference of one volt. It is a convenient unit for expressing energy on the atomic and subatomic scale. The electronvolt is approximately equivalent to 1. 6 x 10^-19 joules. It is widely used in fields such as particle physics, atomic physics, and semiconductor physics, where the small energies involved are often more conveniently expressed in electronvolts rather than joules. The concept of electronvolt was introduced in the early 20th century and has since become an important tool in understanding and describing the behavior of particles at the atomic and subatomic levels.