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Rhenium-164

Properties and data of the isotope 164Re.


Content

See also: list of Rhenium isotopes.

 

General data

Name of the isotope:Rhenium-164; Re-164Symbol:164Re or 16475ReMass number A:164 (= number of nucleons)Atomic number Z:75 (= number of protons)Neutrons N:89Isotopic mass:163.97051(6) u (atomic weight of Rhenium-164)Nuclide mass:163.9293707 u (calculated nuclear mass without electrons)Mass excess:-27.46976 MeVMass defect:1.387544924 u (per nucleus)Nuclear binding energy:1292.48977144 MeV (per nucleus)
7.88103519 MeV (average binding energy per nucleon)
Separation energy:SN = 9.54(6) MeV (first neutron)Half-life:0.70(16) sDecay constant λ:0.99021025794278 s-1Specific activity α:3.658396106923 × 10+21 Bq g-1
98875570457.397 Ci g-1
Spin and parity:
(nuclear angular momentum)
Year of discovery:1979

 

Radioactive Decay

Half-life T½ = 0.70(16) s respectively 7.0 × 10-1 seconds s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
α160Taca. 58 %5.926(5) MeV
EE/β+164Wca. 42 %10.76(6) MeV

 

Parent Nuclides

Direct parent isotope is: 168Ir.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 89) and isobaric (same nucleon number A = 164) with Rhenium-164. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 89Isobar A = 164
50139Sn
51140Sb
52141Te
53142I
54143Xe
55144Cs
56145Ba
57146La
58147Ce
59148Pr
60149Nd
61150Pm
62151Sm164Sm
63152Eu164Eu
64153Gd164Gd
65154Tb164Tb
66155Dy164Dy
67156Ho164Ho
68157Er164Er
69158Tm164Tm
70159Yb164Yb
71160Lu164Lu
72161Hf164Hf
73162Ta164Ta
74163W164W
75164Re164Re
76165Os164Os
77166Ir164Ir
78167Pt

 

External data and identifiers

Adopted Levels, Gammas:NuDat 164Re

 


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Last update: 2020-10-21


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