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Promethium-152

Promethium-152
Algemeen
Element promethium (Pm)
Nuclide 152Pm
Aantal protonen 61
Aantal neutronen 91
Nuclidische gegevens
Nuclidenmassa 151,923496795 u
Spin 1+
Bindingsenergie 8,22618 MeV
Massaoverschot −71,262276 MeV
Vervalgegevens
Type verval β-verval
Halveringstijd 4,117 minuten
Vervalenergie 3,5065 MeV
Vervalproduct samarium-152
Isotopen van promethium
Portaal  Portaalicoon   Scheikunde
Natuurkunde

Promethium-152 of 152Pm is een onstabiele radioactieve isotoop van promethium, een lanthanide. De isotoop komt van nature niet op Aarde voor.

Promethium-152 ontstaat onder meer bij het radioactief verval van neodymium-152.

Radioactief verval

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Promethium-152 vervalt door β-verval naar de stabiele isotoop samarium-152:

De halveringstijd bedraagt 4,1 minuten.

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Promethium-152
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