The electron, denoted is a fundamental particle with negative electric charge that is found arranged in quantum mechanical orbits about neutral atoms. The electron is a lepton, and therefore has lepton number 1. The antiparticle of the electron is called the positron.

The electron mass is kg, and the electron charge , where C.

Atom, Electron Angular Momentum, Electron Aufbau, Electron Capture, Electron Charge, Electron Degeneracy Pressure, Electron Mass, Electron Microprobe, Electron Microscope, Electron Neutrino, Electron Orbital, Electron Radius, Electron Scattering, Electron Volt, Ionization, Ionization Fraction, Lepton, Neutron, Positron, Positronium, Proton, Quark