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    what are the fundamental particles?
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    (Original post by jilebinator)
    what are the fundamental particles?
    Particles which (we believe) are not themselves made up from any smaller particles (i.e they have no substructure)

    atoms - not fundamental, made up from protons and neutrons
    electrons - fundamental; no smaller components
    protons - not fundamental, made from quarks
    quarks - fundamental
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    For PHYA1:
    Leptons - electron, muon, electron neutrino, muon neutrino
    Quarks - up, down, strange
    Their anti-particles are also fundamental.
 
 
 
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