Niobium-93m
Properties and data of the isotope 93mNb.
See also: list of Niobium isotopes.
General data
Name of the isotope:Niobium-93m; Nb-93mSymbol:93mNb or 93m41NbMass number A:93 (= number of nucleons)Atomic number Z:41 (= number of protons)Neutrons N:52Isotopic mass:92.90637(2) u (atomic weight of Niobium-93m)
Excitation energy: 30.77(2) keVNuclide mass:92.8838792 u (calculated nuclear mass without electrons)Mass excess:-87.21578 MeVMass defect:0.86503194400001 u (per nucleus)Nuclear binding energy:805.77206564 MeV (per nucleus)
8.66421576 MeV (average binding energy per nucleon)Half-life:16.12(12) aDecay constant λ:1.363496696356 × 10-9 s-1Specific activity α:8925183877738.1 Bq g-1
241.22118588481 Ci g-1Spin and parity:
(nuclear angular momentum)1/2-
Radioactive Decay
Half-life T½ = 16.12(12) a respectively 5.0836 × 108 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
Iso | 93Nb | 100 % | | |
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 |
---|
93Nb | | stable | 9/2+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 52) and isobaric (same nucleon number A = 93) with Niobium-93m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 52 | Isobar A = 93 |
28 | 80Ni | |
29 | 81Cu | |
30 | 82Zn | |
31 | 83Ga | |
32 | 84Ge | |
33 | 85As | |
34 | 86Se | 93Se |
35 | 87Br | 93Br |
36 | 88Kr | 93Kr |
37 | 89Rb | 93Rb |
38 | 90Sr | 93Sr |
39 | 91Y | 93Y |
40 | 92Zr | 93Zr |
41 | 93Nb | 93Nb |
42 | 94Mo | 93Mo |
43 | 95Tc | 93Tc |
44 | 96Ru | 93Ru |
45 | 97Rh | 93Rh |
46 | 98Pd | 93Pd |
47 | 99Ag | 93Ag |
48 | 100Cd | |
49 | 101In | |
50 | 102Sn | |
51 | 103Sb | |
Last update: 2020-10-15
Perma link: https://www.chemlin.org/isotope/niobium-93m
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