Niobium-93
Properties and data of the isotope 93Nb.
See also: list of Niobium isotopes.
General data
Name of the isotope:Niobium-93; Nb-93Symbol:93Nb or 9341NbMass 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-93)Nuclide 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)Separation energy:SN = 8.8309(20) MeV (first neutron)
SP = 6.0428(15) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)9/2+Magnetic dipole moment:μ(μN) = +6.163(2)Charge radius:4.3240(17) femtometer fmYear of discovery:1932
Parent Nuclides
Direct parent isotopes are: 93Mo, 93Zr.
Occurrence
Comparison of the natural Niobium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):
| | Atomic Mass ma | Quantity | Half-life | Spin |
|---|
Niobium
Isotopic mixture | 92.90637 u | 100 % | | |
| Isotope 93Nb | 92.90637(2) u | 100 % | stable | 9/2+ |
NMR data
Nuclear magnetic properties of the NMR active Nuclide 93Nb
Isotope:93Nb-NMRQuantity:100 %Spin:9/2+Nuclearmagnetic moment
μ/μN:+6.163(2)Gyromagnetic ratio γ:6.5674 · 107 rad T-1 s-1Nuclear g-factor:gl = 1.3695555555556Quadrupole moment Q:-0.32(2) barn (100 fm2)Line width parameter (factor):l = 75.85 fm4Resonance frequency:v0 = 10.4523 at 1 TRelative Sensitivity:0.48821 (H0 = const.)
8.1013 (v0 = const.)
[related to 1H = 1.000]
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 |
|---|
| 93mNb | 30.77(2) keV | 16.12(12) a | 1/2- |
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-93. 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 | |
External data and identifiers
Last update: 2020-10-15
Perma link: https://www.chemlin.org/isotope/niobium-93
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