elementary entity

https://doi.org/10.1351/goldbook.E02033
Any countable object or event, but usually a molecule, an ion or a specified group of atoms.
Source:
Physical Chemistry Division, unpublished [Terms]
Citation: 'elementary entity' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.E02033 RIS BibTex EndNote
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Last revised: February 24, 2014