The Twelve Fundamental Particles

Quarks Leptons
up (u) electron (e-)
down (d) electron-neutrino ( n e)
strange (s)muon ( m -)
charm (c) muon-neutrino ( n m)
bottom (b) tau ( t -)
top (t) tau-neutrino (n t)

NB: The letters in brackets are the standard abreviations for the particle names.

? Why does the proton or the neutron not appear in the table?

ANSWER

Click here to return to the Standard Model Page