chemical element

== English == === Pronunciation === === Noun === chemical element (plural chemical elements) (chemistry) Any one of the types of atom distinguished by having a certain number of protons in its nucleus. Synonym: element (chemistry) A chemical substance made entirely of one such type of atom; any one of the simplest chemical substances that cannot be decomposed in a chemical reaction or by any chemical means and made up of atoms all having the same number of protons. Synonyms: elementary substance, element ==== Translations ==== === References === International Union of Pure and Applied Chemistry (2014). "chemical element". Compendium of Chemical Terminology Internet edition.