elementary charge, e

https://doi.org/10.1351/goldbook.E02032
The elementary charge, e, is one of seven fixed constants defining the International System of Units, the SI, with e=1.602 176 634 ×10−19 C. The elementary charge e corresponds to a coupling strength of the electromagnetic force via the fine-structure constant and is considered as a fundamental constant of nature.
Sources:
BIPM, The International System of Units, SI Brochure, 9th ed. (2019), p. 127ff [Terms] [Book]
Newell et al., Metrologia 55, L13-L16 (2018) [Terms] [Source]
Citation: 'elementary charge' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.E02032 RIS BibTex EndNote
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