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Niobium-93m

Properties and data of the isotope 93mNb.


Contents

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) keV
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)
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-1
Spin and parity:
(nuclear angular momentum)
1/2-

 

Radioactive Decay

Half-life T½ = 16.12(12) a respectively 5.0836 × 108 seconds s.

Decay
mode
DaughterProbabilityDecay energyγ energy
(intensity)
Iso93Nb100 %

 

Nuclear Isomers

Nuclear isomers or excited states with the activation energy in keV related to the ground state.

Nuclear IsomerExcitation EnergyHalf-lifeSpin
93Nbstable9/2+

 

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.

 

ZIsotone N = 52Isobar A = 93
2880Ni
2981Cu
3082Zn
3183Ga
3284Ge
3385As
3486Se93Se
3587Br93Br
3688Kr93Kr
3789Rb93Rb
3890Sr93Sr
3991Y93Y
4092Zr93Zr
4193Nb93Nb
4294Mo93Mo
4395Tc93Tc
4496Ru93Ru
4597Rh93Rh
4698Pd93Pd
4799Ag93Ag
48100Cd
49101In
50102Sn
51103Sb

 


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Last update: 2020-10-15


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