Promethium-150
Properties and data of the isotope 150Pm.
See also: list of Promethium isotopes.
General data
Name of the isotope:Promethium-150; Pm-150Symbol:150Pm or 15061PmMass number A:150 (= number of nucleons)Atomic number Z:61 (= number of protons)Neutrons N:89Isotopic mass:149.920990(22) u (atomic weight of Promethium-150)Nuclide mass:149.8875292 u (calculated nuclear mass without electrons)Mass excess:-73.59734 MeVMass defect:1.327514476 u (per nucleus)Nuclear binding energy:1236.57176931 MeV (per nucleus)
8.2438118 MeV (average binding energy per nucleon)Separation energy:SN = 5.604(20) MeV (first neutron)
SP = 6.511(20) MeV (first proton)Half-life:2.698(15) hDecay constant λ:7.13643007742 × 10-5 s-1Specific activity α:2.884334708948 × 10+17 Bq g-1
7795499.2133741 Ci g-1Spin and parity:
(nuclear angular momentum)(1-)Year of discovery:1952
Radioactive Decay
Half-life T½ = 2.698(15) h (hours) respectively 9.7128 × 103 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 150Sm | 100 % | 3.454(20) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 89) and isobaric (same nucleon number A = 150) with Promethium-150. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 89 | Isobar A = 150 |
50 | 139Sn | |
51 | 140Sb | |
52 | 141Te | |
53 | 142I | |
54 | 143Xe | |
55 | 144Cs | 150Cs |
56 | 145Ba | 150Ba |
57 | 146La | 150La |
58 | 147Ce | 150Ce |
59 | 148Pr | 150Pr |
60 | 149Nd | 150Nd |
61 | 150Pm | 150Pm |
62 | 151Sm | 150Sm |
63 | 152Eu | 150Eu |
64 | 153Gd | 150Gd |
65 | 154Tb | 150Tb |
66 | 155Dy | 150Dy |
67 | 156Ho | 150Ho |
68 | 157Er | 150Er |
69 | 158Tm | 150Tm |
70 | 159Yb | 150Yb |
71 | 160Lu | 150Lu |
72 | 161Hf | |
73 | 162Ta | |
74 | 163W | |
75 | 164Re | |
76 | 165Os | |
77 | 166Ir | |
78 | 167Pt | |
External data and identifiers
Last update: 2020-10-20
Perma link: https://www.chemlin.org/isotope/promethium-150
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