The elementary particles are hadrons, leptons and propagators.
Hadron is composed of quarks, including top quarks, upper quarks, lower quarks, odd quarks, charm quarks, bottom quarks, and maybe some, but it is not found that most of the existing particles are hadrons, and protons, neutrons and π mesons all belong to hadrons.
Lepton is a general term for particles that only participate in weak force, electromagnetic force and gravity, but not in strong interaction. There are six kinds of leptons, including electron, electron neutrino, muon, muon neutrino, τ neutrino and τ neutrino. Electrons, muons and τ are charged, but all neutrinos are uncharged. Altair is an important particle discovered in 1975. It belongs to leptons without strong interaction, but its mass is very heavy, which is 3600 times that of electrons and 1.8 times that of protons, so it is also called heavy leptons.
Propagators also belong to elementary particles. There are 8 kinds of gluons that transmit strong effects, which are indirectly found in the three-jet phenomenon of 1979. They can form gluon balls, but they cannot be observed directly because of color confinement. W+, W- and Z0, which transmit weak effects. The heavy vector boson was found in 1983, which is very heavy, 80-90 times that of protons.