If you meant to ask what is a quark, it's one of the basic elementary particles in what physicists refer to as the Standard Model. Electrons and neutrinos, as well as certain other related particles called "leptons", are also elementary particles. Neutrons, protons, and other mesons and baryons are made of quarks. The force holding quarks together in baryons and mesons is called the strong force, and it is... strong, that is. It's the strongest known force in the universe, and its gauge particles (force carriers) are called gluons.
On the off chance you meant it exactly as written...
In the old science-fiction TV comedy Quark, the title character was played by Richard Benjamin. In Star Trek Deep Space 9, an entirely different character named Quark was played by Armin Shimerman.
The reason that protons are positive and neutrons have no charge is owed to the fact that quarks, which make up these particles, do not have integral charge. The charge of an up quark is +2/3, and the charge of a down quark is -1/3. When the charges of the quarks are added for the particles, we get the following: Proton = up quark + up quark + down quark = 2/3 + 2/3 - 1/3 = 4/3 - 1/3 = 3/3 = +1 Neutron = up quark + down quark + down quark = 2/3 - 1/3 - 1/3 = 2/3 - 2/3 = 0 (zero)
A quark is the smallest particle in matter.
A proton can be divided into 2 Ups and a Down quark, and a neutron into 2 Downs and an Up quark. In general the quark is the elementary particle from which protons and neutron are formed.
All matter to our understanding is made of very small things called atoms. These are neutral in charge with a nucleus containing protons and neutrons and outside there is electrons. These particles can further be split into things such as quarks. There includes many types of these and are strange quark, up quark, down quark, charm quark, bottom quark, and top quark. These all have values associated with them such as spin and charge.
gluon
An anti-strange quark is an antiquark corresponding to the strange quark.
An anti-up quark is an antiquark which corresponds to the up quark.
An anti-beauty quark is an obsolete term for the anti-bottom quark.
Quark.
A Quark, is the smallest.
The final quark, the Top Quark, was discovered in 1995 at FermiLab.
quark quark
An antibottom quark is another name for the bottom antiquark, the antiparticle of the bottom quark.
Quark quark.
Quark Pharmaceuticals was created in 1993.
Quark - techfest - was created in 2006.
Lady Quark was created in 1985.