electron volt
nounUS /ɪˈlek.trɑːn ˌvoʊlt/
1
Natural sciences, Physical sciences, Physics A unit for measuring the energy of subatomic particles; the energy equal to that attained by an electron moving through a potential difference of one volt. Equivalent to 1.6022 × 10⁻¹⁹ joules.
- To get a feel for the size, the energy required to completely liberate an electron from the ground state of a hydrogen atom is 13.6 electron volts.2011, Brian Cox, Jeff Forshaw, The Quantum Universe, Allen Lane, page 158n:
- Derived terms
- gigaelectronvolt, GeV, BeV, kiloelectronvolt, KeV, megaelectronvolt, MeV, millielectronvolt, meV, teraelectronvolt, TeV