Quark
Videos
A quark is a type of elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the comp
Murray Gell-Mann (2007)
George Zweig (2015)
Proton
Videos
A proton is a stable subatomic particle, symbol p, H+, or 1H+ with a positive electric charge of +1 e. Its mass is slightly less than the mass of a neutron and approximately 1836 times the mass of an
Quark
…elementary particle and a fundamental constituent of matter. Quarks combine to form composite particles called hadrons, the most stable of which are protons and neutrons, the components of atomic nuclei. All commonly observable matter is composed of up quarks, down quarks, and electrons. Owing to a phenomenon…
Ernest Rutherford at the first Solvay Conference, 1911