See also: List of individual Rhenium isotopes (and general data sources).
General data
Name of the isotope:Rhenium-167; Re-167Symbol:167Re or 16775ReMass number A:167 (= number of nucleons)Atomic number Z:75 (= number of protons)Neutrons N:92Nucleon pairing (Z - N):odd - evenNuclear ratio (N/Z ratio):1.2266666666667 (= neutron-proton ratio)Neutron excess (N-Z):17Isotopic mass:166.96261(4) u (atomic weight of Rhenium-167)Nuclide mass:166.9214707 u (calculated nuclear mass without electrons)Mass excess:-34.82856 MeVMass defect:1.421439672 u (per nucleus)Nuclear binding energy:1324.06252583 MeV (per nucleus) 7.92851812 MeV (average binding energy per nucleon)Separation energy:SN = 11.01(8) MeV (first neutron) SP = 0.23(4) MeV (first proton)Half-life:5.9(3) sDecay constant λ:0.11748257297626 s-1Specific activity α:4.237455268038 × 10+20 Bq g-1 11452581805.511 Ci g-1Spin and parity: (nuclear angular momentum)(9/2-)Year of discovery:1992
The following table shows the atomic nuclei that are isotonic (same neutron number N = 92) and isobaric (same nucleon number A = 167) with Rhenium-167. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
