Rhenium-182
Properties and data of the isotope 182Re.
See also: List of individual Rhenium isotopes (and general data sources).
General data
Name of the isotope:Rhenium-182; Re-182Symbol:182Re or 18275ReMass number A:182 (= number of nucleons)Atomic number Z:75 (= number of protons)Neutrons N:107Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.4266666666667 (= neutron-proton ratio)Neutron excess (N-Z):32Isotopic mass:181.95121(11) u (atomic weight of Rhenium-182)Nuclide mass:181.9100707 u (calculated nuclear mass without electrons)Mass excess:-45.44759 MeVMass defect:1.562813412 u (per nucleus)Nuclear binding energy:1455.7513164 MeV (per nucleus)
7.99863361 MeV (average binding energy per nucleon)Separation energy:SN = 7.0(1) MeV (first neutron)
SP = 4.5(1) MeV (first proton)Half-life:64.2(5) hDecay constant λ:2.999079182069 × 10-6 s-1Specific activity α:9.978385240070 × 10+15 Bq g-1
269686.08756947 Ci g-1Spin and parity:
(nuclear angular momentum)7+Magnetic dipole moment:μ(μN) = 2.84(6)Quadrupole moment Q:+ 4.10(3) barn (100 fm2)Nuclear g-factor:gl = 0.40571428571429Year of discovery:1950
Radioactive Decay
Half-life T½ = 64.2(5) h (hours) respectively 2.31120 × 105 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| EC/β+ | 182W | 100 % | 2.80(1) MeV | |
Parent Nuclides
Direct parent isotope is: 182Os.
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 |
|---|
| 182mRe | | 14.14(45) h | 2+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 107) and isobaric (same nucleon number A = 182) with Rhenium-182. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 107 | Isobar A = 182 |
|---|
| 64 | 171Gd | |
| 65 | 172Tb | |
| 66 | 173Dy | |
| 67 | 174Ho | |
| 68 | 175Er | |
| 69 | 176Tm | |
| 70 | 177Yb | 182Yb |
| 71 | 178Lu | 182Lu |
| 72 | 179Hf | 182Hf |
| 73 | 180Ta | 182Ta |
| 74 | 181W | 182W |
| 75 | 182Re | 182Re |
| 76 | 183Os | 182Os |
| 77 | 184Ir | 182Ir |
| 78 | 185Pt | 182Pt |
| 79 | 186Au | 182Au |
| 80 | 187Hg | 182Hg |
| 81 | 188Tl | 182Tl |
| 82 | 189Pb | 182Pb |
| 83 | 190Bi | |
| 84 | 191Po | |
| 85 | 192At | |
| 86 | 193Rn | |
External data and identifiers
Last update: 2020-10-21
Perma link: https://www.chemlin.org/isotope/rhenium-182
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