Niobium-97m

Properties and data of the isotope ^97mNb.

Contents

General data

Name of the isotope:Niobium-97m; Nb-97mSymbol:^97mNb or 97m41NbMass number A:97 (= number of nucleons)Atomic number Z:41 (= number of protons)Neutrons N:56Isotopic mass:96.908098(5) u (atomic weight of Niobium-97m)
Excitation energy: 743.35(3) keVNuclide mass:96.8856072 u (calculated nuclear mass without electrons)Mass excess:-85.60616 MeVMass defect:0.89796360800001 u (per nucleus)Nuclear binding energy:836.44771307 MeV (per nucleus)
8.6231723 MeV (average binding energy per nucleon)Half-life:58.7(18) sDecay constant λ:0.011808299498466 s^-1Specific activity α:7.407421135008 × 10⁺¹⁹ Bq g^-1
2002005712.1645 Ci g^-1Spin and parity:
(nuclear angular momentum)1/2-

Radioactive Decay

Half-life T_½ = 58.7(18) s respectively 5.87 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
Iso	⁹⁷Nb	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
⁹⁷Nb		72.1(7) min	9/2+

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 56) and isobaric (same nucleon number A = 97) with Niobium-97m. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 56	Isobar A = 97
31	⁸⁷Ga
32	⁸⁸Ge
33	⁸⁹As
34	⁹⁰Se
35	⁹¹Br	⁹⁷Br
36	⁹²Kr	⁹⁷Kr
37	⁹³Rb	⁹⁷Rb
38	⁹⁴Sr	⁹⁷Sr
39	⁹⁵Y	⁹⁷Y
40	⁹⁶Zr	⁹⁷Zr
41	⁹⁷Nb	⁹⁷Nb
42	⁹⁸Mo	⁹⁷Mo
43	⁹⁹Tc	⁹⁷Tc
44	¹⁰⁰Ru	⁹⁷Ru
45	¹⁰¹Rh	⁹⁷Rh
46	¹⁰²Pd	⁹⁷Pd
47	¹⁰³Ag	⁹⁷Ag
48	¹⁰⁴Cd	⁹⁷Cd
49	¹⁰⁵In	⁹⁷In
50	¹⁰⁶Sn
51	¹⁰⁷Sb
52	¹⁰⁸Te
53	¹⁰⁹I
54	¹¹⁰Xe