FullHair

Positron

Also called  positive electron,  any positively charged subatomic particle having the same mass and magnitude of charge as the electron and constituting the antiparticle of a negative electron. Positrons were the first of the antiparticles to be predicted and discovered. P.A.M. Dirac postulated their existence (1930–31) to account for the otherwise superfluous negative energy states of the electron

posted by FullHair @ 12:47 AM