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Atoms Definition & Molecule Definition - Atoms are the smallest particle of an element, which may or may not have an independent existence but always take part in a chemical reaction. Molecules always exist independently and retain their physical and chemical properties.
May 20, 2024 · Atom, smallest unit into which matter can be divided without the release of electrically charged particles. It also is the smallest unit of matter that has the characteristic properties of a chemical element. As such, the atom is the basic building block of chemistry.
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 divided using any chemical means. Every solid, liquid, gas, and plasma consists of neutral or ionized atoms.
Atoms are the basic particles of the chemical elements. An atom consists of a nucleus of protons and generally neutrons, surrounded by an electromagnetically bound swarm of electrons. The chemical elements are distinguished from each other by the number of protons that are in their atoms.
1. a. : the smallest particle of an element that can exist either alone or in combination. an atom of hydrogen. b. : the atom considered as a source of vast potential constructive or destructive energy. … a largely forgotten legacy of this country's conquest of the atom. William J. Broad.
Dec 15, 2021 · What is an atom? Facts about the building blocks of the universe. References. By Daisy Dobrijevic, Tim Sharp. published 15 December 2021. Atoms are made up of a nucleus, protons and...
noun. Physics. the smallest component of an element having the chemical properties of the element, consisting of a nucleus containing combinations of neutrons and protons and one or more electrons bound to the nucleus by electrical attraction; the number of protons determines the identity of the element.
