CIAAW may publish changes to atomic weights (including its precision and derived values). Since 1947, any update this is done in odd years nominally; the actual date of publication may be some time later.
2009 ((CIAAW2009 ))
(introducing interval notation; Ge):"Atomic weights of the elements 2009 (IUPAC Technical Report)". Pure Appl. Chem . 83 (2): 359–396. 12 December 2010. doi :10.1351/PAC-REP-10-09-14 . "Atomic weights of the elements 2011 (IUPAC Technical Report)". Pure Appl. Chem . 85 (5): 1047–1078. 29 April 2013. doi :10.1351/PAC-REP-13-03-02 . Meija, Juris; et al. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)" . Pure and Applied Chemistry . 88 (3): 265–91. doi :10.1515/pac-2015-0305 . "Standard Atomic Weight of Ytterbium Revised". Chemistry International . 37 (5–6): 26. October 2015. doi :10.1515/ci-2015-0512 . eISSN 0193-6484 . ISSN 0193-6484 . "Standard atomic weights of 14 chemical elements revised" . CIAAW. 2018-06-05.* "2020" is an inconsistent year for change publication: CIAAW maintains that only odd years, changes are publicised. 2021 ((CIAAW2021 ))
(all elements listed ); (4 values changed; introduced new symbol; merge "conventional" into "abridged" columns; change uncertainty notation (use "±")Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; Böhlke, John K.; Chesson, Lesley A.; Coplen, Tyler B.; Ding, Tiping; Dunn, Philip J. H.; Gröning, Manfred; Holden, Norman E.; Meijer, Harro A. J. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)" . Pure and Applied Chemistry . doi :10.1515/pac-2019-0603 . ISSN 1365-3075 .
Uncertainty handling About notation and handling of the uncertainty in the values, including those in [ ] range values:
Outdated references
(( NUBASE 1997)) — Audi
(( NUBASE 2003)) — Audi (used in the 2008 enwiki "Isotopes of <element>" Big Tables)
(( NUBASE 2012))
(( CIAAW2003)) — De Laeter
(( CIAAW 2005)) — Wieser
See also: (( Isotopes table/references ))