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  1. Quark - Wikipedia

    Elementary fermions are grouped into three generations, each comprising two leptons and two quarks. The first generation includes up and down quarks, the second strange and charm quarks, and the …

  2. Quarks: What are they? | Space

    Nov 1, 2022 · Quarks are elementary particles that are the building blocks of all visible matter in the universe. Explore them in more detail here.

  3. Quark | Definition, Flavors, & Colors | Britannica

    Oct 23, 2025 · quark, any member of a group of elementary subatomic particles that interact by means of the strong force and are believed to be among the fundamental constituents of matter.

  4. DOE Explains...Quarks and Gluons - Department of Energy

    There are six different kinds of quarks with a wide range of masses. They are named up, down, charm, strange, top, and bottom. Quarks are the only elementary particles to experience all the known …

  5. What Are Quarks? Building Blocks of Everything

    May 24, 2025 · Quarks are tiny, mysterious particles that, together with gluons and leptons, compose all matter in the universe. They are the essential constituents of protons, neutrons, and many other …

  6. Quarks - HyperPhysics

    Quarks are observed to occur only in combinations of two quarks (mesons), three quarks (baryons). There was a recent claim of observation of particles with five quarks (pentaquark), but further …

  7. Quarks - Experimental Particle Physics – Syracuse University

    Quarks are a type of particle that constitute matter. Look around you…all of the matter that you see is made up of protons and neutrons, and these particles are composed of quarks.There are three pairs …