Promethium-163
Properties and data of the isotope 163Pm.
See also: list of Promethium isotopes.
General data
Name of the isotope:Promethium-163; Pm-163Symbol:163Pm or 16361PmMass number A:163 (= number of nucleons)Atomic number Z:61 (= number of protons)Neutrons N:102Isotopic mass:162.95357(43) u (atomic weight of Promethium-163)Nuclide mass:162.9201092 u (calculated nuclear mass without electrons)Mass excess:-43.24927 MeVMass defect:1.407578384 u (per nucleus)Nuclear binding energy:1311.15081923 MeV (per nucleus)
8.04387006 MeV (average binding energy per nucleon)Separation energy:SN = 3.21(44) MeV (first neutron)
SP = 4.95(50) MeV (first proton)Half-life:0.43(35) sDecay constant λ:1.6119701873487 s-1Specific activity α:5.992291068044 × 10+21 Bq g-1
161953812649.86 Ci g-1Spin and parity:
(nuclear angular momentum)(5/2-)Year of discovery:2012
Radioactive Decay
Half-life T½ = 0.43(35) s respectively 4.3 × 10-1 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 163Sm | 100 % | 7.47(50) MeV | |
β-, n | 162Sm | ? | 3.21(44) MeV | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 102) and isobaric (same nucleon number A = 163) with Promethium-163. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 102 | Isobar A = 163 |
60 | 162Nd | 163Nd |
61 | 163Pm | 163Pm |
62 | 164Sm | 163Sm |
63 | 165Eu | 163Eu |
64 | 166Gd | 163Gd |
65 | 167Tb | 163Tb |
66 | 168Dy | 163Dy |
67 | 169Ho | 163Ho |
68 | 170Er | 163Er |
69 | 171Tm | 163Tm |
70 | 172Yb | 163Yb |
71 | 173Lu | 163Lu |
72 | 174Hf | 163Hf |
73 | 175Ta | 163Ta |
74 | 176W | 163W |
75 | 177Re | 163Re |
76 | 178Os | 163Os |
77 | 179Ir | |
78 | 180Pt | |
79 | 181Au | |
80 | 182Hg | |
81 | 183Tl | |
82 | 184Pb | |
83 | 185Bi | |
84 | 186Po | |
External data and identifiers
Last update: 2020-10-20
Perma link: https://www.chemlin.org/isotope/promethium-163
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