See also: List of individual Germanium isotopes (and general data sources).
General data
Name of the isotope:Germanium-75; Ge-75Symbol:75Ge or 7532GeMass number A:75 (= number of nucleons)Atomic number Z:32 (= number of protons)Neutrons N:43Nucleon pairing (Z - N):even - oddNuclear ratio (N/Z ratio):1.34375 (= neutron-proton ratio)Neutron excess (N-Z):11Isotopic mass:74.92285837(5) u (atomic weight of Germanium-75)Nuclide mass:74.9053044 u (calculated nuclear mass without electrons)Mass excess:-71.85697 MeVMass defect:0.700134042 u (per nucleus)Nuclear binding energy:652.17065932 MeV (per nucleus) 8.69560879 MeV (average binding energy per nucleon)Separation energy:SN = 6.50584(5) MeV (first neutron) SP = 11.096(3) MeV (first proton)Half-life:82.78(4) minDecay constant λ:0.00013955608853989 s-1Specific activity α:1.121722298623 × 10+18 Bq g-1 30316818.881711 Ci g-1Spin and parity: (nuclear angular momentum)1/2-Magnetic dipole moment:μ(μN) = + 0.509(5)Nuclear g-factor:gl = 1.018Year of discovery:1939
Radioactive Decay
Half-life T½ = 82.78(4) min (minutes) respectively 4.9668 × 103 seconds s.
The following table shows the atomic nuclei that are isotonic (same neutron number N = 43) and isobaric (same nucleon number A = 75) with Germanium-75. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
