What are quarks? Quarks or quarks are a type of elementary subatomic particle , which falls into the category of fermions , and whose strong interactions constitute the matter of atomic nuclei. Its name comes from the novel Finnegan’s Wake by the Irish author James Joyce. In other words, quarks are the particles from which protons and neutrons are made , as well as other types of tiny particles called hadrons. These terms can be confusing, but it is not necessary to understand them at such technical levels to know what a quark is: the tiniest particles of matter , which interact freely with the four elementary physical forces: gravitational force, electromagnetic force, strong nuclear force and weak nuclear force Together with leptons, quarks are the very bricks of matter. In the same way that matter and antimatter exist, there are also quarks and antiquarks. In addition, there are six types or “flavors” of quark. Thus all the mesons and barions of matter can be constructed, th