Template:Infobox lanthanum isotopes

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Main isotopes of lanthanum (57La)
Iso­tope Decay
abun­dance half-life (t1/2) mode pro­duct
137La syn 6×104 y ε 137Ba
138La 0.089% 1.05×1011 y ε 138Ba
β 138Ce
139La 99.911% stable
Standard atomic weight Ar°(La)
  • 138.90547±0.00007
  • 138.91±0.01 (abridged)[1][2]
Ba ←

i'box Ba

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iso
57
La (E)
→ Ce

i'box Ce

  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}} (2021-12-24)
See also Category:Infobox element data sets (0)

References

  1. "Standard Atomic Weights: Lanthanum". CIAAW. 2005.
  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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