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electron volt

Noun CEFR B2
ɪˈlek.trɑːn ˌvoʊlt

Definitions

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.

Equivalents

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Examples

“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.”

CEFR level

B2
Upper Intermediate
This word is part of the CEFR B2 vocabulary — upper intermediate level.
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See also

electron wave function Electron-emitting Electrona electronarcosis electronarcotization electronation

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