Template:Infobox helium isotopes: Difference between revisions

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Main isotopes of helium (2He)
Iso­tope Decay
abun­dance half-life (t1/2) mode pro­duct
3He 0.0002% stable
4He 99.9998% stable
Standard atomic weight Ar°(He)
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  • Script error: No such module "val". (abridged)[1][2]
Helium
H ←

ibox H

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→ Li

ibox Li

indexes by PT (page)
  Data sets read by {{Infobox element}}
Name and identifiers
Top image (caption, alt)
Pronunciation
Allotropes (demo)
Group (demo)
Period (demo)
Block (demo)
Standard atomic weight
  most stable isotope
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Wikidata *
Symbol etymology (11 non-trivial)
* Not used in {{Infobox element}} (2023-01-01)
See also {{Index of data sets}} · Category:data sets (0)

References

  1. "Standard Atomic Weights: Helium". CIAAW. 1983.
  2. Prohaska, Thomas; Irrgeher, Johanna; Benefield, Jacqueline; et al. (2022-05-04). "Standard atomic weights of the elements 2021 (IUPAC Technical Report)". Pure and Applied Chemistry. doi:10.1515/pac-2019-0603. ISSN 1365-3075.

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