Germanium-75m1
Properties and data of the isotope 75Ge.
See also: list of Germanium isotopes.
General data
Name of the isotope:Germanium-75m1; Ge-75m1Symbol:75Ge or 7532GeMass number A:75 (= number of nucleons)Atomic number Z:32 (= number of protons)Neutrons N:43Isotopic mass:74.92285837(5) u (atomic weight of Germanium-75m1)
Excitation energy: 139.69(3) KeVNuclide 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)Half-life:47.7(5) sDecay constant λ:0.014531387433123 s-1Specific activity α:1.182568405575 × 10+20 Bq g-1
3196130825.8795 Ci g-1Spin and parity:
(nuclear angular momentum)7/2+
Radioactive Decay
Half-life T½ = 47.7(5) s respectively 4.77 × 101 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 75As | 0.030(6) % | | |
Iso | 75Ge | 99.970(6) % | | |
Nuclear Isomers
Nuclear isomers or excited states with the activation energy in keV related to the ground state.
Nuclear Isomer | Excitation Energy | Half-life | Spin |
---|
75Ge | | 82.78(4) min | 1/2- |
75m2Ge | 192.19(6) keV | 216(5) ns | 5/2+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 43) and isobaric (same nucleon number A = 75) with Germanium-75m1. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 43 | Isobar A = 75 |
23 | 66V | |
24 | 67Cr | |
25 | 68Mn | |
26 | 69Fe | |
27 | 70Co | 75Co |
28 | 71Ni | 75Ni |
29 | 72Cu | 75Cu |
30 | 73Zn | 75Zn |
31 | 74Ga | 75Ga |
32 | 75Ge | 75Ge |
33 | 76As | 75As |
34 | 77Se | 75Se |
35 | 78Br | 75Br |
36 | 79Kr | 75Kr |
37 | 80Rb | 75Rb |
38 | 81Sr | 75Sr |
39 | 82Y | |
40 | 83Zr | |
41 | 84Nb | |
42 | 85Mo | |
43 | 86Tc | |
44 | 87Ru | |
External data and identifiers
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/germanium-75m1
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