Niobium-86

Properties and data of the isotope ⁸⁶Nb.

Content

General data

Name of the isotope:Niobium-86; Nb-86Symbol:⁸⁶Nb or 8641NbMass number A:86 (= number of nucleons)Atomic number Z:41 (= number of protons)Neutrons N:45Isotopic mass:85.925782(6) u (atomic weight of Niobium-86)Nuclide mass:85.9032912 u (calculated nuclear mass without electrons)Mass excess:-69.13362 MeVMass defect:0.784965532 u (per nucleus)Nuclear binding energy:731.19068326 MeV (per nucleus)
8.50221725 MeV (average binding energy per nucleon)Separation energy:S_N = 10.926(7) MeV (first neutron)
S_P = 3.248(8) MeV (first proton)Half-life:88(1) sDecay constant λ:0.007876672506363 s^-1Specific activity α:5.580521334224 × 10⁺¹⁹ Bq g^-1
1508249009.2499 Ci g^-1Spin and parity:
(nuclear angular momentum)(6+)Year of discovery:1974

Radioactive Decay

Half-life T_½ = 88(1) s respectively 8.8 × 10¹ seconds s.

Decay mode	Daughter	Probability	Decay energy	γ energy (intensity)
EE/β⁺	⁸⁶Zr	100 %	8.835(7) MeV

Parent Nuclides

Direct parent isotope is: ⁸⁶Mo.

Isotones and Isobars

The following table shows the atomic nuclei that are isotonic (same neutron number N = 45) and isobaric (same nucleon number A = 86) with Niobium-86. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.

OZ	Isotone N = 45	Isobar A = 86
25	⁷⁰Mn
26	⁷¹Fe
27	⁷²Co
28	⁷³Ni
29	⁷⁴Cu
30	⁷⁵Zn
31	⁷⁶Ga	⁸⁶Ga
32	⁷⁷Ge	⁸⁶Ge
33	⁷⁸As	⁸⁶As
34	⁷⁹Se	⁸⁶Se
35	⁸⁰Br	⁸⁶Br
36	⁸¹Kr	⁸⁶Kr
37	⁸²Rb	⁸⁶Rb
38	⁸³Sr	⁸⁶Sr
39	⁸⁴Y	⁸⁶Y
40	⁸⁵Zr	⁸⁶Zr
41	⁸⁶Nb	⁸⁶Nb
42	⁸⁷Mo	⁸⁶Mo
43	⁸⁸Tc	⁸⁶Tc
44	⁸⁹Ru	⁸⁶Ru
45	⁹⁰Rh
46	⁹¹Pd
47	⁹²Ag