Template:Infobox helium isotopes

Isotopes of helium (2He)
Main isotopes[1] Decay
abun­dance half-life (t1/2) mode pro­duct
3He 0.0002%
Preview warning: Infobox He isotopes: Abundance percentage not recognised "na=0.0002%" cat#%
stable
4He 99.9998%
Preview warning: Infobox He isotopes: Abundance percentage not recognised "na=99.9998%" cat#%
stable
Standard atomic weight Ar°(He)
He · Helium
H ←

ibox H

iso
2
He  [e]
IB-He [e]
IBisos [e]
→ Li

ibox Li

indexes by PT (page)
child table, as reused in {IB-He}
Main isotopes of helium
Main isotopes[1] Decay
abun­dance half-life (t1/2) mode pro­duct
3He 0.0002%
Preview warning: Infobox He isotopes: Abundance percentage not recognised "na=0.0002%" cat#%
stable
4He 99.9998%
Preview warning: Infobox He isotopes: Abundance percentage not recognised "na=99.9998%" cat#%
stable
Data sets read by {{Infobox element}}
Name and identifiers
Symbol etymology (11 non-trivial)
Top image (caption, alt)
Pronunciation
Allotropes (overview)
Group (overview)
Period (overview)
Block (overview)
Natural occurrence
Phase at STP
Oxidation states
Spectral lines image
Electron configuration (cmt, ref)
Isotopes
Standard atomic weight
  most stable isotope
Wikidata
Wikidata *
* Not used in {{Infobox element}} (2023-01-01)
See also {{Index of data sets}} · Cat:data sets (46) · (this table: )

References

  1. ^ a b Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
  2. ^ "Standard Atomic Weights: Helium". CIAAW. 1983.
  3. ^ 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. doi:10.1515/pac-2019-0603. ISSN 1365-3075.