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Rhenium-182

Properties and data of the isotope 182Re.


Contents

See also: list of Rhenium isotopes.

 

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:107Isotopic 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-1
Spin 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
DaughterProbabilityDecay energyγ energy
(intensity)
EC/β+182W100 %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 IsomerExcitation EnergyHalf-lifeSpin
182mRe14.14(45) h2+

 

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.

 

ZIsotone N = 107Isobar A = 182
65172Tb
66173Dy
67174Ho
68175Er
69176Tm
70177Yb182Yb
71178Lu182Lu
72179Hf182Hf
73180Ta182Ta
74181W182W
75182Re182Re
76183Os182Os
77184Ir182Ir
78185Pt182Pt
79186Au182Au
80187Hg182Hg
81188Tl182Tl
82189Pb182Pb
83190Bi
84191Po
85192At
86193Rn

 

External data and identifiers

Adopted Levels, Gammas:NuDat 182Re

 


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Last update: 2020-10-21


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