Promethium-160
Properties and data of the isotope 160Pm.
See also: list of Promethium isotopes.
General data
Name of the isotope:Promethium-160; Pm-160Symbol:160Pm or 16061PmMass number A:160 (= number of nucleons)Atomic number Z:61 (= number of protons)Neutrons N:99Isotopic mass:159.94310(21) u (atomic weight of Promethium-160)Nuclide mass:159.9096392 u (calculated nuclear mass without electrons)Mass excess:-53.00201 MeVMass defect:1.392053636 u (per nucleus)Nuclear binding energy:1296.68960961 MeV (per nucleus)
8.10431006 MeV (average binding energy per nucleon)Separation energy:SN = 4.52(20) MeV (first neutron)
SP = 10.48(36) MeV (first proton)Half-life:0.73(6) sDecay constant λ:0.94951668569856 s-1Specific activity α:3.596303918325 × 10+21 Bq g-1
97197403197.976 Ci g-1Spin and parity:
(nuclear angular momentum)(6-)Year of discovery:2012
Radioactive Decay
Half-life T½ = 0.73(6) s respectively 7.3 × 10-1 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 160Sm | 100 % | 7.23(20) MeV | |
β-, n | 159Sm | ? | 1.13(20) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 99) and isobaric (same nucleon number A = 160) with Promethium-160. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 99 | Isobar A = 160 |
57 | 156La | |
58 | 157Ce | |
59 | 158Pr | 160Pr |
60 | 159Nd | 160Nd |
61 | 160Pm | 160Pm |
62 | 161Sm | 160Sm |
63 | 162Eu | 160Eu |
64 | 163Gd | 160Gd |
65 | 164Tb | 160Tb |
66 | 165Dy | 160Dy |
67 | 166Ho | 160Ho |
68 | 167Er | 160Er |
69 | 168Tm | 160Tm |
70 | 169Yb | 160Yb |
71 | 170Lu | 160Lu |
72 | 171Hf | 160Hf |
73 | 172Ta | 160Ta |
74 | 173W | 160W |
75 | 174Re | 160Re |
76 | 175Os | 160Os |
77 | 176Ir | |
78 | 177Pt | |
79 | 178Au | |
80 | 179Hg | |
81 | 180Tl | |
82 | 181Pb | |
External data and identifiers
Last update: 2020-10-20
Perma link: https://www.chemlin.org/isotope/promethium-160
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