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{{CIAAW2016}} adds a full reference ( <ref>...</ref> ) for the standard atomic weight ( A _{r, standard} ) of chemical elements as defined by IUPAC (commission: CIAAW ). The source is:

• Meija, J.; Coplen, T.B.; Berglund, M.; Brand, W.A.; De Bievre, P.; Groning, 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 )

This template has options to use by refname, and as plain source (no <ref> tag). See #Options .

Notes

• This report was published in February 2016, while it documents the 2013 CIAAW list publication.
• As CIAAW publishes the atomic weights biannually, in 2015 the website published a new list of standard atomic weights. ^[2] It appears that in 2015, only the formal standard atomic weight of ytterbium ( ₇₀ Yb) was changed wrt the "2013" publication. ^[3] In 2017, no changes were published at all.

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Some text. {{CIAAW2016}} → Some text. ^[1]

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{{CIAAW2016|plain}} → Meija, J.; Coplen, T.B.; Berglund, M.; Brand, W.A.; De Bievre, P.; Groning, 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 )

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{{CIAAW2016|name}} → ^[1] ( <ref "CIAW2016" /> , for a second usage))

CIAAW [ ????????? ]

Primarily, the atomic weights second here are defined by CIAAW [1] :

• "Standard Atomic Weights" . Commission on Isotopic Abundances and Atomic Weights (CIAAW). 2015 . Retrieved 2015-09-20 . (68 elements)
• CIAAW also published additional lists in spreadsheet format (2013). It has additional conventional values for trade usage, and some background information on the numbers and calculations. (12 elements: H, B, Br, C, Cl, Li, Mg, N, O, S, Si, Tl).

Coplen, T. B.; Brand, W. A. (2013). "Atomic weights of the elements 2013 (xls)" . CIAAW . Retrieved 2015-05-26 . {{ cite web }} : Unknown parameter |displayauthors= ignored ( |display-authors= suggested) ( help )

• Some unstable elements can naturally occur, and so are listed (4 elements: Bi, Th, Pa, U)
• Additional values are those of the most stable isotopes, as given in List of chemical elements (34 elements). This source is not supported by the CIAAW publications.

• CIAAW site or table 1 in PAC, has footnotes g, m, r.

Standard atomic weights [ ????????? ]

References