Negatively charged particles {electron}| rapidly orbit atomic nuclei at varying distances. Electron mass is 10^-27 grams or 0.511 MeV. Electron charge is -1. Lifetime is infinite. Protons equal electrons in neutral atoms. Electrons travel 10^-14 meters in 10^-8 seconds in one orbit.
Physical Sciences>Physics>Matter>Particle>Subatomic>Fermion>Lepton
5-Physics-Matter-Particle-Subatomic-Fermion-Lepton
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Date Modified: 2022.0224