Quarks and electrons are some of the elementary particles. A number of fundamental particles have been discovered in various experiments. So many, that researchers had to organize them, just like Mendeleev did with his periodic table. This is summarized in a theoretical model (concerning the electromagnetic, weak, and strong nuclear interactions) called the Standard Model. In particle physics, an elementary particle or fundamental particle is a particle whose substructure is unknown, thus it is unknown whether it is composed of other particles. Known elementary particles include the fundamental fermions and the fundamental bosons.
See also: Baryons
See also: Leptons
The fermions are generally “matter particles” and “antimatter particles”:
The bosons are generally “force particles” that mediate interactions among fermions:
However, only a few of these fundamental particles (in fact, some of these are not fundamental particles – e.i. neutron consist of three quarks) are very important in nuclear engineering. Nuclear engineering or theory of nuclear reactors operates with much better known subatomic particles such as:
Fundametal Particles by The Science Channel
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