Template:Standard atomic weight of the elements/ciaaw-list-of-updates

( This list:) 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 (introducing interval notation; Ge):


 * 2011 (interval for Br, Mg):


 * 2013 (all elements listed):


 * 2015 (ytterbium changed):


 * 2017 (14 values changed):


 * 2019 (hafnium value changed):
 * 2020 * (lead value changed):
 * * "2020" is an inconsistent year for change publication: CIAAW maintains that only odd years, changes are publicised.


 * 2021   (all elements listed); (4 values changed; introduced new symbol; merge "conventional" into "abridged" columns; change uncertainty notation (use "&plusmn;")

About notation and handling of the uncertainty in the values, including those in [ ] range values:
 * Uncertainty handling
 * CIAAW2021: changing notation (i.e., interpretation, not the value) from $123.45$ into $123.45$
 * CIAAW2021: changing notation (i.e., interpretation, not the value) from ⇭⇭⇭ into ⇭⇭⇭


 * NUBASE 1997 &mdash; Audi
 * NUBASE 2003 &mdash; Audi (used in the 2008 enwiki "Isotopes of &lt;element>" Big Tables)
 * NUBASE 2012
 * CIAAW2003 &mdash; De Laeter
 * CIAAW 2005 &mdash; Wieser


 * CRC85 &mdsh; Holden
 * -- broken/bad access


 * See also: Isotopes table/references