See also: List of individual Germanium isotopes (and general data sources).
General data
Name of the isotope:Germanium-62; Ge-62Symbol:62Ge or 6232GeMass number A:62 (= number of nucleons)Atomic number Z:32 (= number of protons)Neutrons N:30Nucleon pairing (Z - N):even - evenNuclear ratio (N/Z ratio):0.9375 (= neutron-proton ratio)Neutron excess (N-Z):-2Isotopic mass:61.95519(15) u (atomic weight of Germanium-62)Nuclide mass:61.937636 u (calculated nuclear mass without electrons)Mass excess:-41.74025 MeVMass defect:0.555158504 u (per nucleus)Nuclear binding energy:517.12681552 MeV (per nucleus) 8.34075509 MeV (average binding energy per nucleon)Separation energy:SN = 16.45(33) MeV (first neutron) SP = 1.89(14) MeV (first proton)Half-life:129(35) msDecay constant λ:5.373233957829 s-1Specific activity α:5.222866918890 × 10+22 Bq g-1 1411585653754.2 Ci g-1Spin and parity: (nuclear angular momentum)0+Mirror nucleus:Zinc-62Year of discovery:1991
Radioactive Decay
Half-life T½ = 129(35) ms respectively 1.29 × 10-1 seconds s.
Decay mode
Daughter
Probability
Decay energy
γ energy (intensity)
EC/β+
62Ga
10.25(14) MeV
EC, p
61Zn
?
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 30) and isobaric (same nucleon number A = 62) with Germanium-62. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
