First-generation charged lepton: spin-½, charge −e, mass 0.511 MeV/c². Stable. Constituent of atoms (orbital electrons); discovered by J.J. Thomson (1897). This node is the particle-physics view; the chemistry-bound view lives at L2…
First-generation charged lepton: spin-½, charge −e, mass 0.511 MeV/c². Stable. Constituent of atoms (orbital electrons); discovered by J.J. Thomson (1897). This node is the particle-physics view; the chemistry-bound view lives at L2…