Changes

: *Many [[Subatomic Particle|particle]]s of [[matter]] have [[antimatter]] counterparts which have the same [[mass]] but opposite [[Electrical Charge|electrical charge]].: *[[Antiparticle]]s are generally denoted by a bar over the top of the symbol used for their [[matter]] counterpart.*During [[Pair-Production|pair-production]] a [[Subatomic Particle|particle]] and its '''antiparticle''' appear.: *When a [[Subatomic Particle|particle]] meets its '''antiparticle''' they [[Annihilation|annihilate]] one another producing a pair of [[photon]]s.: *Most '''antiparticles''' are given the name of their counterpart [[Subatomic Particle|particle]] with the addition of the prefix '''anti'''. However, the '''antiparticle''' counterpart of the [[electron]] is known as the [[positron]].*The existence of [[antiparticle]]s is a fundamental concept in [[Particle Physics|particle physics]].*[[Antiparticle]]s are produced in high-energy collisions and natural radioactive [[Decay (Physics)|decay]].*[[Antiparticle]]s can be trapped and studied using magnetic fields in devices like Penning traps.*Understanding [[antiparticle]]s helps in exploring the symmetry and interactions of fundamental forces.*The discovery of [[antiparticle]]s confirmed the predictions of [[Quantum Field Theory|quantum field theory]].