Zirconium-90m2
Properties and data of the isotope 90Zr.
See also: list of Zirconium isotopes.
General data
Name of the isotope:Zirconium-90m2; Zr-90m2Symbol:90Zr or 9040ZrMass number A:90 (= number of nucleons)Atomic number Z:40 (= number of protons)Neutrons N:50Isotopic mass:89.90470(2) u (atomic weight of Zirconium-90m2)
Excitation energy: 3589.419(16) keVNuclide mass:89.8827578 u (calculated nuclear mass without electrons)Mass excess:-88.77138 MeVMass defect:0.84154707999998 u (per nucleus)Nuclear binding energy:783.89605574 MeV (per nucleus)
8.70995617 MeV (average binding energy per nucleon)Half-life:131(4) nsDecay constant λ:5291199.8516026 s-1Specific activity α:3.580264137576 × 10+28 Bq g-1
9.676389561016 × 10+17 Ci g-1Spin and parity:
(nuclear angular momentum)8+Magnetic dipole moment:μ(μN) = -10.85(6)Quadrupole moment Q:0.51(3) barn (100 fm2)Nuclear g-factor:gl = -1.35625
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 |
---|
90Zr | | stable | 0+ |
90m1Zr | 2319.00(1) keV | 809.2(20) ms | 5- |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 50) and isobaric (same nucleon number A = 90) with Zirconium-90m2. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 50 | Isobar A = 90 |
28 | 78Ni | |
29 | 79Cu | |
30 | 80Zn | |
31 | 81Ga | |
32 | 82Ge | 90Ge |
33 | 83As | 90As |
34 | 84Se | 90Se |
35 | 85Br | 90Br |
36 | 86Kr | 90Kr |
37 | 87Rb | 90Rb |
38 | 88Sr | 90Sr |
39 | 89Y | 90Y |
40 | 90Zr | 90Zr |
41 | 91Nb | 90Nb |
42 | 92Mo | 90Mo |
43 | 93Tc | 90Tc |
44 | 94Ru | 90Ru |
45 | 95Rh | 90Rh |
46 | 96Pd | 90Pd |
47 | 97Ag | |
48 | 98Cd | |
49 | 99In | |
50 | 100Sn | |
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/zirconium-90m2
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