Electronvolt is equal to . It is a common unit of energy within physics, widely used in solid state, atomic, nuclear, and particle physics. It is commonly used with the metric prefixes milli-, kilo-, mega-, giga-, tera-, peta- or exa- (meV, keV, MeV, GeV, TeV, PeV and EeV respectively). In some older documents, and in the name Bevatron, the symbol BeV is used, which stands for billion (10) electronvolts; it is equivalent to the GeV. An electronvolt is the amount of energy gained (or lost) by the charge of a single electron moving across an electric potential difference of one volt.
Orders of magnitude (numbers) kilo- (k) (; one hundred thousand or a lakh). ISO: mega- (M) ISO: giga- (G) ISO: tera- (T) ISO: peta- (P) ISO: exa- (E) ISO: zetta- (Z) ISO: yotta- (Y) Orders of magnitude (numbers) This list contains selected positive numbers in increasing order, including counts of things, dimensionless quantity and probabilities. Each number is given a name in the short scale, which is used in English-speaking countries, as well as a name in the long scale, which is used in some of the countries that do not have English as their national language. ISO: yocto- (y) ISO: zepto- (z) ISO: