Template:Standard atomic weight of the elements

Z Symbol Name Ar, standard abridged year changed
 

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  1.   (This list:  view • edit )
    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):
    Template:CIAAW2009
    Template:CIAAW2011
    Template:CIAAW2013/cite journal
    Template:CIAAW2015
    Template:CIAAW2017
    • 2019 (hafnium value changed): Meija, Juris; et al. (2019-12-09). "Standard atomic weight of hafnium revised". CIAAW. Retrieved 2020-02-25.
    • 2020* (lead value changed): Zhu, Xiang-Kun; Benefield, Jacqueline; Coplen, Tyler B.; Gao, Zhaofu; Holden, Norman E. (1 October 2020). "Variation of lead isotopic composition and atomic weight in terrestrial materials (IUPAC Technical Report)". doi:10.1515/pac-2018-0916.
    * "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 "±")
    Template:CIAAW2021
    Uncertainty handling

    About notation and handling of the uncertainty in the values, including those in [ ] range values:

    Outdated references
    See also: {{Isotopes table/references}}

References

Documentation icon Template documentation[view] [edit] [history] [purge]

Usage

Standard atomic weight, infobox element, isotopes of element.

Data source

All values are as published by CIAAW.
The atomic weight (Ar) specifiers "standard atomic weight", "abridged atomic weight", "conventional atomic weight" are thus named and defined (numerical value as listed here) by IUPAC (CIAAW).[1][2]
|format=standard [default], abridged, formal-short-rounded
{{Infobox element/symbol-to-saw/standard}}, Template:CIAAW2021
{{Infobox element/symbol-to-saw/abridged}}
{{Infobox element/symbol-to-saw/formal-short-rounded}}

Number formatting

  • Per source, abridged numbers without stated uncertainty have uncertainty (1). So Ar, abridged(Be) = 9.0122, reads 9.0122(1).
  • All numbers are formatted through {{val}}. This introduces the small space as 1000-grouping (per MOS:DIGITS).

CIAAW value updates

  (This list:  view • edit )
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):
Template:CIAAW2009
Template:CIAAW2011
Template:CIAAW2013/cite journal
Template:CIAAW2015
Template:CIAAW2017
* "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 "±")
Template:CIAAW2021
Uncertainty handling

About notation and handling of the uncertainty in the values, including those in [ ] range values:

Outdated references
See also: {{Isotopes table/references}}

References

  1. Meija, J.; Coplen, T. B.; Berglund, M.; Brand, W.A.; De Bièvre, P.; Gröning, M.; Holden, N.E.; Irrgeher, J.; Loss, R.D.; Walczyk, T.; Prohaska, T. (2016). "Atomic weights of the elements 2013 (IUPAC Technical Report)". Pure and Applied Chemistry. 88 (3): 265–91. doi:10.1515/pac-2015-0305. {{cite journal}}: Unknown parameter |displayauthors= ignored (|display-authors= suggested) (help)
  2. "Standard Atomic Weight of Ytterbium Revised". Chemistry International. October 2015. p. 26. doi:10.1515/ci-2015-0512. eISSN 0193-6484. ISSN 0193-6484.