See also: List of individual Germanium isotopes (and general data sources).
General data
Name of the isotope:Germanium-82; Ge-82Symbol:82Ge or 8232GeMass number A:82 (= number of nucleons)Atomic number Z:32 (= number of protons)Neutrons N:50Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):1.5625 (= neutron-proton ratio)Neutron excess (N-Z):18Isotopic mass:81.9297740(24) u (atomic weight of Germanium-82)Nuclide mass:81.91222 u (calculated nuclear mass without electrons)Mass excess:-65.4151 MeVMass defect:0.753872824 u (per nucleus)Nuclear binding energy:702.22801232 MeV (per nucleus) 8.56375625 MeV (average binding energy per nucleon)Separation energy:SN = 7.195(3) MeV (first neutron) SP = 15.076(4) MeV (first proton)Half-life:4.0(7) sDecay constant λ:0.17328679513999 s-1Specific activity α:1.2737218977 × 10+21 Bq g-1 34424916154.324 Ci g-1Spin and parity: (nuclear angular momentum)0+Year of discovery:1972
The following table shows the atomic nuclei that are isotonic (same neutron number N = 50) and isobaric (same nucleon number A = 82) with Germanium-82. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
