Interactive Simulator · Quarks and leptons
Build a Hadron
Combine up and down quarks and read off the total charge. Make a proton from uud, a neutron from udd, and see why a baryon needs three quarks.
Mission
Predict the quark composition of a proton.
Streak 0Best 0
A proton is made of the quarks:
compositionuud
total charge+1 e
particleproton
Up quark +2/3 e, down quark −1/3 e. Proton = uud (+1 e); neutron = udd (0).