Crossword clues for Electron's particle 4 lettersAnswerClueBETA___ particle (electron or positron emitted by radioactive decay)BETA___ particle (electron)ATOMElectron's particleATOMParticle with an electron cloudMUONSubatomic particle more massive than an electronMUONParticle that can temporarily replace an electronMUONSubatomic particle with greater mass than an electronPIONParticle with a mass about 270 times that of an electronMUONNegatively charged particle that is two hundred times more massive than an electronBETARAYElectron particle emissionMESONSElectronic particlesIONElectron-deficient particle, e.g.IONFIGURESCount of electronically charged particles?LEPTONParticle category that includes electronsMUONSParticles with mass about 200 times that of electrons