Niobium-92m2

Properties and data of the isotope ^92m2Nb.

Contents

General data

Name of the isotope:Niobium-92m2; Nb-92m2Symbol:^92m2Nb or 92m241NbMass number A:92 (= number of nucleons)Atomic number Z:41 (= number of protons)Neutrons N:51Isotopic mass:91.9071886(19) u (atomic weight of Niobium-92m2)
Excitation energy: 225.8(4) keVNuclide mass:91.8846978 u (calculated nuclear mass without electrons)Mass excess:-86.45326 MeVMass defect:0.85554842800001 u (per nucleus)Nuclear binding energy:796.93822739 MeV (per nucleus)
8.66237204 MeV (average binding energy per nucleon)Half-life:5.9(2) μsDecay constant λ:117482.57297626 s^-1Specific activity α:7.774687945613 × 10⁺²⁶ Bq g^-1
2.10126701232 × 10⁺¹⁶ Ci g^-1Spin and parity:
(nuclear angular momentum)(2)-Magnetic dipole moment:μ(μ_N) = -1.398(14)Nuclear g-factor:g_l = -0.699

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
⁹²Nb		3.47(24) × 10⁷ a	(7)+
^92m1Nb	135.5(4) keV	10.15(2) d	(2)+
^92m3Nb	2203.3(4) keV	167(4) ns	(11-)

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 51) and isobaric (same nucleon number A = 92) with Niobium-92m2. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

Z	Isotone N = 51	Isobar A = 92
28	⁷⁹Ni
29	⁸⁰Cu
30	⁸¹Zn
31	⁸²Ga
32	⁸³Ge
33	⁸⁴As	⁹²As
34	⁸⁵Se	⁹²Se
35	⁸⁶Br	⁹²Br
36	⁸⁷Kr	⁹²Kr
37	⁸⁸Rb	⁹²Rb
38	⁸⁹Sr	⁹²Sr
39	⁹⁰Y	⁹²Y
40	⁹¹Zr	⁹²Zr
41	⁹²Nb	⁹²Nb
42	⁹³Mo	⁹²Mo
43	⁹⁴Tc	⁹²Tc
44	⁹⁵Ru	⁹²Ru
45	⁹⁶Rh	⁹²Rh
46	⁹⁷Pd	⁹²Pd
47	⁹⁸Ag	⁹²Ag
48	⁹⁹Cd
49	¹⁰⁰In
50	¹⁰¹Sn