Unlike the atoms they help build, quarks are considered "point-like" particles, meaning they have no measurable size or internal structure. They are the bedrock of the physical world. The Six "Flavors" of Quarks
The heaviest of all quarks—about as massive as an entire gold atom. Unlike the atoms they help build, quarks are
Quarks are the ultimate building blocks. From the "Up" and "Down" quarks that make up your body to the massive "Top" quarks created in high-energy collisions, these particles represent the deepest level of reality we have yet discovered. AI responses may include mistakes. Learn more Quarks are the ultimate building blocks
A quark is an elementary particle and a fundamental constituent of matter. In the standard model of particle physics, quarks combine to form composite particles called , the most stable of which are protons and neutrons—the components of atomic nuclei. Learn more A quark is an elementary particle