HADRONS
There are two types of hadrons: baryons and mesons.
Quarks cannot be isolated. They exist only in baryons and mesons, and thus have never been studied alone.
Baryons
![Picture](/uploads/9/5/7/7/9577565/4896271.jpeg)
http://www.regenerating-universe-theory.org/13)_What_is_Gravity.htm
Baryons are made up of three quarks held together by gluons.
Protons are made up of two up quarks and one down quark, for a total of two up quarks and one down quark.
Neutrons are made up of two down quarks and one up quark, for a total of two down quarks and one up quark.
Baryons make up the majority of matter, because they are part of the nucleus of an atom, which gives an atom most of its mass.
Protons are made up of two up quarks and one down quark, for a total of two up quarks and one down quark.
Neutrons are made up of two down quarks and one up quark, for a total of two down quarks and one up quark.
Baryons make up the majority of matter, because they are part of the nucleus of an atom, which gives an atom most of its mass.
Mesons
![Picture](/uploads/9/5/7/7/9577565/5474419.jpeg)
http://www.regenerating-universe-theory.org/13)_What_is_Gravity.htm
Mesons are made up of a quark and an antiquark held together by gluons.
They are extremely unstable and thus uncommon because they feature two opposing forces.
They are extremely unstable and thus uncommon because they feature two opposing forces.