Though the word atom originally denoted a particle that cannot be cut into smaller particles, in modern scientific usage the atom is composed of various subatomic particles.

Nov 14, 2025 · Each individual atom consists of smaller particles—namely, electrons and nuclei. These particles are electrically charged, and the electric forces on the charge are responsible …

Contrary to what Dalton and his contemporaries believed, atoms can, in fact, be broken apart into smaller units called subatomic particles. Ultimately, three main types of subatomic particles …

Nov 19, 2023 · An atom is the basic building block of matter, consisting of protons, neutrons, and electrons. An atom is the smallest unit of matter that forms a chemical element and cannot be …

Nov 18, 2025 · Atoms are composed of three primary subatomic particles: protons, neutrons, and electrons. Protons and neutrons reside together in the dense, central region of the atom …

Jan 24, 2024 · Most atoms have three different subatomic particles inside them: protons, neutrons, and electrons.

Learn about protons, neutrons, and electrons — their charges, masses, and roles — and how these particles make up atoms in this chemistry tutorial.

Aug 28, 2025 · Atoms are composed primarily of three types of subatomic particles: protons, neutrons, and electrons. Protons and neutrons reside together in the atom’s dense central …

Learn about the structure of the atom, subatomic particles, electron arrangement, atomic and mass numbers, and isotopes. Includes worked examples and key definitions to support …

Fermion particles are described by Fermi–Dirac statistics and have quantum numbers described by the Pauli exclusion principle. They include the quarks and leptons, as well as any …