Lutetium-167m
Properties and data of the isotope 167Lu.
See also: list of Lutetium isotopes.
General data
Name of the isotope:Lutetium-167m; Lu-167mSymbol:167Lu or 16771LuMass number A:167 (= number of nucleons)Atomic number Z:71 (= number of protons)Neutrons N:96Isotopic mass:166.93827(3) u (atomic weight of Lutetium-167m)
Excitation energy: XNuclide mass:166.8993245 u (calculated nuclear mass without electrons)Mass excess:-57.50112 MeVMass defect:1.449139208 u (per nucleus)Nuclear binding energy:1349.86447742 MeV (per nucleus)
8.08302082 MeV (average binding energy per nucleon)Half-life:1 minDecay constant λ:0.0011552453009332 s-1Specific activity α:4.190993933734 × 10+18 Bq g-1
113270106.31716 Ci g-1Spin and parity:
(nuclear angular momentum)1/2+Magnetic dipole moment:μ(μN) = - 0.0999(13)Nuclear g-factor:gl = -0.1998
Radioactive Decay
Half-life T½ = 1 min (minutes) respectively 60 × 101 seconds s.
| Decay mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| EE/β+ | 167Yb | ? | | |
| Iso | 167Lu | ? | | |
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 |
|---|
| 167Lu | | 51.5(10) min | 7/2+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 96) and isobaric (same nucleon number A = 167) with Lutetium-167m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| OZ | Isotone N = 96 | Isobar A = 167 |
|---|
| 55 | 151Cs | |
| 56 | 152Ba | |
| 57 | 153La | |
| 58 | 154Ce | |
| 59 | 155Pr | |
| 60 | 156Nd | |
| 61 | 157Pm | |
| 62 | 158Sm | |
| 63 | 159Eu | 167Eu |
| 64 | 160Gd | 167Gd |
| 65 | 161Tb | 167Tb |
| 66 | 162Dy | 167Dy |
| 67 | 163Ho | 167Ho |
| 68 | 164Er | 167Er |
| 69 | 165Tm | 167Tm |
| 70 | 166Yb | 167Yb |
| 71 | 167Lu | 167Lu |
| 72 | 168Hf | 167Hf |
| 73 | 169Ta | 167Ta |
| 74 | 170W | 167W |
| 75 | 171Re | 167Re |
| 76 | 172Os | 167Os |
| 77 | 173Ir | 167Ir |
| 78 | 174Pt | 167Pt |
| 79 | 175Au | |
| 80 | 176Hg | |
| 81 | 177Tl | |
| 82 | 178Pb | |
Last update: 2020-10-11
Perma link: https://www.chemlin.org/isotope/lutetium-167m
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