relative atomic mass (atomic weight), \(A_\text{r}\)

https://doi.org/10.1351/goldbook.R05258
The ratio of the average mass of the atom to the @[email protected]
See also:
standard atomic weight
Sources:
Green Book, 2nd ed., p. 41 [Terms] [Book]
PAC, 1996, 68, 957. (Glossary of terms in quantities and units in Clinical Chemistry (IUPAC-IFCC Recommendations 1996)) on page 990 [Terms] [Paper]
Cite as: IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). Online version (2019-) created by S. J. Chalk. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.
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Last revised: February 24, 2014