සැකිල්ල:Periodic table/sandbox119
Group | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | |
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Hydrogen & alkali metals |
Alkaline earth metals | Triels | Tetrels | Pnictogens | Chalcogens | Halogens | Noble gases | ||||||||||||
Period |
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2 | |||||||||||||||||||
3 | |||||||||||||||||||
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6 | |||||||||||||||||||
7 | |||||||||||||||||||
Standard atomic weight Ar, std(E)[1]
- Ca: 40.078 — Abridged value (uncertainty omitted here)[2]
- Po: [209] — mass number of the most stable isotope
- ^ 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.
- ^ 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 (ඉංග්රීසි බසින්). doi:10.1515/pac-2019-0603. ISSN 1365-3075.