A proton is a subatomic particle with a positive fundamental electric charge of 1.6 × 10-19 coulomb and a mass of 938 MeV — in other words, a hydrogen ion, specifically 1H, which contains no neutrons.
Terms derived directly from this core meaning in particle physics include:
- Proton conductor, an electrolyte in which movable hydrogen ions are the primary charge carriers
- Proton decay, radioactive decay in which the proton decays into lighter subatomic particles in particle physics
- Proton emission, a type of radioactive decay in which a proton is ejected from a nucleus
- Proton-proton chain reaction, one of two fusion reactions by which stars convert hydrogen to helium
- Proton pump inhibitor, a group of drugs whose main action is pronounced and long-lasting reduction of gastric acid production
Proton may also refer to any of the following:
Astronautics
Cars
Diving
- Proton, Russian diver propulsion vehicle
- Proton, a make of rebreather breathing set made by Siebe Gorman
Fiction
- Proton pack, fictional piece of nuclear accelerative machinery created by the Ghostbusters
- Proton pill, a pharmaceutical taken by Roger Ramjet, the lead character in the US cartoon series by the same name. A single proton pill gives the taker the strength of twenty atom bombs for a period of twenty seconds
Science
- Proton, province of a craton that is between 1.6 and 2.5 billion years old
- Proton Sponge, trademark assigned to Aldrich Chemical Company for 1,8-Bis(dimethylamino)naphthalene
Banking
- Proton Bank, an investment bank in Greece
- Proton card, an electronic purse card introduced in Belgium by Banksys
See also
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