Lutetium-175
Properties and data of the isotope 175Lu.
See also: list of Lutetium isotopes.
General data
Name of the isotope:Lutetium-175; Lu-175Symbol:175Lu or 17571LuMass number A:175 (= number of nucleons)Atomic number Z:71 (= number of protons)Neutrons N:104Isotopic mass:174.94078(2) u (atomic weight of Lutetium-175)Nuclide mass:174.9018345 u (calculated nuclear mass without electrons)Mass excess:-55.16307 MeVMass defect:1.515948536 u (per nucleus)Nuclear binding energy:1412.09696559 MeV (per nucleus)
8.06912552 MeV (average binding energy per nucleon)Separation energy:SN = 7.6667(10) MeV (first neutron)
SP = 5.5100(12) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)7/2+Magnetic dipole moment:μ(μN) = + 2.2327(11)Charge radius:5.3700(304) femtometer fmYear of discovery:1934
Parent Nuclides
Direct parent isotopes are: 175Hf, 175Yb.
Occurrence
Comparison of the natural Lutetium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):
| | Atomic Mass ma | Quantity | Half-life | Spin |
|---|
Lutetium
Isotopic mixture | 174.9668 u | 100 % | | |
| Isotope 175Lu | 174.94078(2) u | 97.401(13) % | stable | 7/2+ |
| Isotope 176Lu | 175.94269(2) u | 2.599(13) % | 3.76(7) × 1010 a | 7- |
NMR data
Nuclear magnetic properties of the NMR active Nuclide 175Lu
Isotope:175Lu-NMRQuantity:97.401(13) %Spin:7/2+Nuclearmagnetic moment
μ/μN:+ 2.2327(11)Gyromagnetic ratio γ:3.0589 · 107 rad T-1 s-1Nuclear g-factor:gl = 0.63791428571429Quadrupole moment Q:+ 3.49(2) barn (100 fm2)Resonance frequency:v0 = 4.8626 at 1 TRelative Sensitivity:0.03128 (H0 = const.)
2.3984 (v0 = const.)
[related to 1H = 1.000]
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 |
|---|
| 175m1Lu | 353.48(13) keV | 1.49(7) μs | 5/2- |
| 175m2Lu | 1392.2(6) keV | 984(30) μs | (19/2+) |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 104) and isobaric (same nucleon number A = 175) with Lutetium-175. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 104 | Isobar A = 175 |
|---|
| 62 | 166Sm | |
| 63 | 167Eu | |
| 64 | 168Gd | |
| 65 | 169Tb | |
| 66 | 170Dy | |
| 67 | 171Ho | 175Ho |
| 68 | 172Er | 175Er |
| 69 | 173Tm | 175Tm |
| 70 | 174Yb | 175Yb |
| 71 | 175Lu | 175Lu |
| 72 | 176Hf | 175Hf |
| 73 | 177Ta | 175Ta |
| 74 | 178W | 175W |
| 75 | 179Re | 175Re |
| 76 | 180Os | 175Os |
| 77 | 181Ir | 175Ir |
| 78 | 182Pt | 175Pt |
| 79 | 183Au | 175Au |
| 80 | 184Hg | 175Hg |
| 81 | 185Tl | |
| 82 | 186Pb | |
| 83 | 187Bi | |
| 84 | 188Po | |
External data and identifiers
Last update: 2020-07-31
Perma link: https://www.chemlin.org/isotope/lutetium-175
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