TeV

A TeV is a teraelectronvolt, i.e., it is 1012 electronvolts, or 1,000,000,000,000 eV. An electronvolt is the amount of energy gained or lost by an electron when it is accelerated by the electrical potential of one volt, or 160.22 nanojoules (nJ).

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It requires 13.6 eV to remove the electron in a hydrogen atom to infinity.

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The eV, and its multiples, keV, MeV, GeV, TeV are used in particle physics as their magnitude is more relevant to the scale of subatomic particles.

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As explained by Einstein, the eV can be used interchangeably as a unit of energy and mass, and often particles are described as having a mass in eV; for example, an electron has a mass of 0.511 MeV and a proton around 930 MeV.

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High-energy particle accelerators use TeV.

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Electronvolt: An electronvolt (symbol: eV) is the amount of energy gained by a single unbound electron when it falls through an electrostatic potential difference of one volt. This is a very small amount of energy:...

Energy: Energy is a fundamental quantity that every physical system possesses. Energy of physical system in a certain given state is defined as the amount of work W needed to change the state of the system from some initial state (called reference state or reference level) to the given state....

Electrical potential: REDIRECT Electric potential...