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Niobium-101

Properties and data of the isotope 101Nb.


Content

See also: list of Niobium isotopes.

 

General data

Name of the isotope:Niobium-101; Nb-101Symbol:101Nb or 10141NbMass number A:101 (= number of nucleons)Atomic number Z:41 (= number of protons)Neutrons N:60Isotopic mass:100.915306(4) u (atomic weight of Niobium-101)Nuclide mass:100.8928152 u (calculated nuclear mass without electrons)Mass excess:-78.89195 MeVMass defect:0.925415272 u (per nucleus)Nuclear binding energy:862.01877338 MeV (per nucleus)
8.53483934 MeV (average binding energy per nucleon)
Separation energy:SN = 7.165(9) MeV (first neutron)
SP = 9.803(9) MeV (first proton)
Half-life:7.1(3) sDecay constant λ:0.097626363459147 s-1Specific activity α:5.879197123943 × 10+20 Bq g-1
15889721956.605 Ci g-1
Spin and parity:
(nuclear angular momentum)
(5/2+)Magnetic dipole moment:μ(μN) = +3.186(2)Nuclear g-factor:gl = 1.2744Charge radius:4.4861(203) femtometer fmYear of discovery:1970

 

Radioactive Decay

Half-life T½ = 7.1(3) s.

Decay modeDaughterProbabilityDecay energyγ energy
(intensity)
β-101Mo100 %4.628(4) MeV

 

Parent Nuclides

Direct parent isotopes are: 101Zr, 248Cm, 252Cf.

 

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 60) and isobaric (same nucleon number A = 101) with Niobium-101. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

 

OZIsotone N = 60Isobar A = 101
3494Se
3595Br
3696Kr101Kr
3797Rb101Rb
3898Sr101Sr
3999Y101Y
40100Zr101Zr
41101Nb101Nb
42102Mo101Mo
43103Tc101Tc
44104Ru101Ru
45105Rh101Rh
46106Pd101Pd
47107Ag101Ag
48108Cd101Cd
49109In101In
50110Sn101Sn
51111Sb
52112Te
53113I
54114Xe
55115Cs
56116Ba
57117La

 

External data and identifiers

Adopted Levels, Gammas:NuDat 101Nb

 


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Last update: 2020-10-15


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