Antiparticle
Antiparticle
Antiparticle (pronunciation: /ˌæntiˈpɑːrtɪkəl/) is a term used in Particle Physics to refer to a subatomic particle that is identical to another particle in terms of mass, but with opposite physical properties such as electric charge.
Etymology
The term "antiparticle" is derived from the prefix "anti-", which means "opposite", and "particle", referring to a minute portion of matter. It was first used in the context of physics in the early 20th century.
Definition
In Quantum Physics, an antiparticle is defined as a particle that has the same mass as another particle, but with opposite values for each of its other properties, such as charge and spin. For example, the antiparticle of an electron (Electron) is a positron (Positron), which has the same mass as an electron but with a positive charge.
Related Terms
- Antimatter: Material composed of antiparticles.
- Positron: The antiparticle of an electron.
- Antiproton: The antiparticle of a proton.
- Antineutron: The antiparticle of a neutron.
See Also
External links
- Medical encyclopedia article on Antiparticle
- Wikipedia's article - Antiparticle
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