Show Summary Details

Quick Reference

An atom in which all the particles of an ordinary atom are replaced by their antiparticles, i.e. electrons by positrons, protons by antiprotons, and neutrons by antineutrons. An antiatom cannot co-exist with an ordinary atom since the atom and the antiatom would annihilate each other with the production of energy in the form of high-energy photons. Antiatoms have been created artificially in laboratories.

Subjects: Physics.

Reference entries

Users without a subscription are not able to see the full content. Please, subscribe or login to access all content.