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(Units) a unit of energy equal to the work done on an electron accelerated through a potential difference of 1 volt. 1 electronvolt is equivalent to 1.602 × 10–19 joule. Symbol: eV
(eV) A unit of energy representing the energy acquired by an electron in passing through a potential difference of 1 volt. 1 eV = (1.6 ± 0.000 07) x 10-19 J.