Lutetium-162
Properties and data of the isotope 162Lu.
See also: list of Lutetium isotopes.
General data
Name of the isotope:Lutetium-162; Lu-162Symbol:162Lu or 16271LuMass number A:162 (= number of nucleons)Atomic number Z:71 (= number of protons)Neutrons N:91Isotopic mass:161.94328(8) u (atomic weight of Lutetium-162)Nuclide mass:161.9043345 u (calculated nuclear mass without electrons)Mass excess:-52.83434 MeVMass defect:1.400804628 u (per nucleus)Nuclear binding energy:1304.84110615 MeV (per nucleus)
8.05457473 MeV (average binding energy per nucleon)Separation energy:SN = 8.34(8) MeV (first neutron)
SP = 2.28(8) MeV (first proton)Half-life:1.37(2) minDecay constant λ:0.0084324474520675 s-1Specific activity α:3.154123375799 × 10+19 Bq g-1
852465777.243 Ci g-1Spin and parity:
(nuclear angular momentum)1-Magnetic dipole moment:μ(μN) = + 0.0553(11)Quadrupole moment Q:+ 0.519 barn (100 fm2)Nuclear g-factor:gl = 0.0553Charge radius:5.2398(317) femtometer fmYear of discovery:1978
Radioactive Decay
Half-life T½ = 1.37(2) min (minutes) respectively 8.22 × 101 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
EE/β+ | 162Yb | ≤ 100 % | 6.99(8) MeV | |
Parent Nuclides
Direct parent isotope is: 162Hf.
Nuclear Isomers
Nuclear isomers or excited states with the activation energy in keV related to the ground state.
Nuclear Isomer | Excitation Energy | Half-life | Spin |
---|
162m1Lu | X | 1.5 min | (4-) |
162m2Lu | Y | 1.9 min | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 91) and isobaric (same nucleon number A = 162) with Lutetium-162. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 91 | Isobar A = 162 |
52 | 143Te | |
53 | 144I | |
54 | 145Xe | |
55 | 146Cs | |
56 | 147Ba | |
57 | 148La | |
58 | 149Ce | |
59 | 150Pr | |
60 | 151Nd | 162Nd |
61 | 152Pm | 162Pm |
62 | 153Sm | 162Sm |
63 | 154Eu | 162Eu |
64 | 155Gd | 162Gd |
65 | 156Tb | 162Tb |
66 | 157Dy | 162Dy |
67 | 158Ho | 162Ho |
68 | 159Er | 162Er |
69 | 160Tm | 162Tm |
70 | 161Yb | 162Yb |
71 | 162Lu | 162Lu |
72 | 163Hf | 162Hf |
73 | 164Ta | 162Ta |
74 | 165W | 162W |
75 | 166Re | 162Re |
76 | 167Os | 162Os |
77 | 168Ir | |
78 | 169Pt | |
79 | 170Au | |
80 | 171Hg | |
External data and identifiers
Last update: 2020-10-11
Perma link: https://www.chemlin.org/isotope/lutetium-162
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