In the
Standard Model of
particle physics,
matter are constituted by 12
particle types and their
antiparticles. Matter particules are divided in two classes:
quarks and
leptons.
All other particles, like
protons or
neutrons are made of
quarks, hence the name
fundamental particles.
In addition, gluons, photons, W and Z bosons, the force carrier particles for, respectively, the strong, electromagnetic and weak interactions, are also considered as fundamental particles.
All Wikipedia text
is available under the
terms of the GNU Free Documentation License