
Subatomic particle | Definition, Examples, & Classes | Britannica
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, …
Subatomic particle - 4 Forces, Quarks, Leptons | Britannica
Oct 15, 2025 · Subatomic particle - 4 Forces, Quarks, Leptons: Quarks and leptons are the building blocks of matter, but they require some sort of mortar to bind themselves together into more-complex …
Subatomic particle - Elementary, Quarks, Leptons | Britannica
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, …
The discovery of subatomic particles | Britannica
subatomic particle, or elementary particle, Any of various self-contained units of matter or energy. Discovery of the electron in 1897 and of the atomic nucleus in 1911 established that the atom is …
Electron | Definition, Mass, & Facts | Britannica
Nov 20, 2025 · However, atoms are made up of three types of subatomic particles: the heavy protons and neutrons that make up the nucleus (the central part of the atom), and the much lighter electrons …
Subatomic particle - Electron, Muon, Tau | Britannica
Oct 15, 2025 · Subatomic particle - Electron, Muon, Tau: Probably the most-familiar subatomic particle is the electron, the component of atoms that makes interatomic bonding and chemical reactions—and …
Neutron | Definition, Charge, Mass, Properties, & Facts | Britannica
Oct 14, 2025 · Neutrons and protons are classified as hadrons, subatomic particles that are subject to the strong force. Hadrons, in turn, have been shown to possess internal structure in the form of …
Proton | Definition, Mass, Charge, & Facts | Britannica
5 days ago · Neutrons and protons are classified as hadrons, subatomic particles that are subject to the strong force. Hadrons, in turn, have been shown to possess internal structure in the form of quarks, …
Particle physics | Elementary Particles, Quarks & Hadrons | Britannica
3 days ago · Particle physics, Study of the fundamental subatomic particles, including both matter (and antimatter) and the carrier particles of the fundamental interactions as described by quantum field …
Subatomic particle - Gravity, Quarks, Hadrons | Britannica
Oct 15, 2025 · Subatomic particle - Gravity, Quarks, Hadrons: The weakest, and yet the most pervasive, of the four basic forces is gravity. It acts on all forms of mass and energy and thus acts on all …