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Praseodymium-138

Praseodymium-138
Algemeen
Element praseodymium (Pr)
Nuclide 138Pr
Aantal protonen 59
Aantal neutronen 79
Nuclidische gegevens
Nuclidenmassa 137,910754636 u
Spin 1+
Bindingsenergie 8,339238 MeV
Massaoverschot −83,131521 MeV
Vervalgegevens
Type verval β+-verval
Halveringstijd 1,45 minuten
Vervalenergie 3,4148 MeV
Vervalproduct cerium-138
Isotopen van praseodymium
Portaal  Portaalicoon   Scheikunde
Natuurkunde

Praseodymium-138 of 138Pr is een onstabiele radioactieve isotoop van praseodymium, een lanthanide. De isotoop komt van nature niet op Aarde voor.

Praseodymium-138 ontstaat onder meer bij het radioactief verval van neodymium-138.

Radioactief verval

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Praseodymium-138 vervalt door β+-verval naar de stabiele isotoop cerium-138:

De halveringstijd bedraagt 1,45 minuten.

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Praseodymium-138
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