Unit of energy of moving particles. Given by the kinetic energy acquired by an electron losing one volt of potential.
eV = 1.60217733x10-19J
|Kilo electron Volt (keV)||=||1,000 eV||Mega electron Volt (MeV)||=||106eV|
|Giga electron Volt (GeV)||=||1,000,000,000 eV||Tera electron Volt (TeV)||=||1012eV|
Electronvolts are used as a measure of the energy of cosmic rays and high-energy photons.
|Binding energy on an electron in an atom||~1 eV|
|the photon energy of visible light||1.6 to 3.4 eV|
|X-rays||~1000 eV (1 keV)|
|energy-equivalent (E=mc2) of the mass of a proton||~1 GeV|
|kinetic energy of a flying mosquito||~1 TeV|
This is sometimes used in the US to designate one billion electronvolts (109), note that this is incorrect and should be designated GeV.
One billion (109) electronvolts. Using Einstein's equation E = mc2 equating mass to energy, the GeV can be regarded either as a unit of energy equal to 160.2176462 picojoules, or as a unit of mass equal to 1.782662x10-24 gram or 1.073544 atomic mass unit.
See also: Electron.