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- DictionaryAt·om/ˈadəm/
noun
- 1. the basic unit of a chemical element.
Jul 14, 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.
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.
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. For example, any atom that contains 11 protons is sodium, and any atom that contains 29 protons is copper.
The meaning of ATOM is the smallest particle of an element that can exist either alone or in combination. How to use atom in a sentence. Did you know?
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...
Atom Definition Chemistry. The smallest particle of an element, which may or may not have an independent existence but always takes place in a chemical reaction is called an atom. An atom is defined as the smallest unit that retains the properties of an element.
Mar 19, 2020 · An element, like hydrogen, oxygen or iron, is a substance that cannot be broken down—outside of a nuclear reaction—into anything else. In other words, one element cannot be transformed into another (again, with the exception of nuclear reactions).
