Oct 15, 2025 · Subatomic particle, any of various self-contained units of matter or energy that are the fundamental constituents of all matter. They include electrons, protons, neutrons, quarks, muons, …

Nov 14, 2025 · These basic subatomic particles—protons, neutrons, and electrons—are themselves made up of smaller substances, such as quarks and leptons. More than 90 types of atoms exist in …

Today all the matter in the universe is viewed as being composed of three kinds of elementary atomic particles: (1) particles called quarks, which make up neutrons and protons; (2) particles called …

Oct 15, 2025 · The term subatomic particle refers both to the true elementary particles, such as quarks and electrons, and to the larger particles that quarks form. Although both are elementary particles, …

A third major group of subatomic particles consists of bosons, which transmit the forces of the universe. More than 200 subatomic particles have been detected so far, and most appear to have a …

Nov 14, 2025 · Atom - Quantum Mechanics, Subatomic Particles, Electrons: Within a few short years scientists developed a consistent theory of the atom that explained its fundamental structure and its …

Oct 15, 2025 · The search for a unified theory of everything, which incorporates all four fundamental forces, is one of the major goals of particle physics. It is leading theorists to an exciting area of study …

Atomic physics, the scientific study of the structure of the atom, its energy states, and its interactions with other particles and with electric and magnetic fields.

Nov 27, 2025 · Atomic model, in physics, a model used to describe the structure and makeup of an atom. Atomic models have gone through many changes over time, evolving as necessary to fit …

Oct 15, 2025 · Probably the most-familiar subatomic particle is the electron, the component of atoms that makes interatomic bonding and chemical reactions —and hence life—possible. The electron …