Template:Infobox element/standard atomic weight/value illustration

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Overview: formal values of the standard atomic weight[1]
Element Ar, standard Ar, std abridged[2] Ar, std conventional[3] Ar, std formal short[4] Mass number
(most stable isotope)
hydrogen 1H [1.007841.00811] [1.00781.0082] 1.008 1.008
nitrogen 7N [14.0064314.00728] [14.00614.008] 14.007 14.007
fluorine 9F 18.998403163(6) 18.998 18.998
calcium 20Ca 40.078(4) 40.078(4) 40.078(4)
technetium 43Tc (none) [97]
Template documentation[create]
  1. 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-2015-0305Freely accessible. 
  2. IUPAC 2016, Table 1.
  3. IUPAC 2016, Table 2.
  4. IUPAC 2016, Table 3.