Yttrium-92
Properties and data of the isotope 92Y.
See also: List of individual Yttrium isotopes (and general data sources).
General data
Name of the isotope:Yttrium-92; Y-92Symbol:92Y or 9239YMass number A:92 (= number of nucleons)Atomic number Z:39 (= number of protons)Neutrons N:53Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.3589743589744 (= neutron-proton ratio)Neutron excess (N-Z):14Isotopic mass:91.908946(10) u (atomic weight of Yttrium-92)Nuclide mass:91.8875523 u (calculated nuclear mass without electrons)Mass excess:-84.81625 MeVMass defect:0.85547079600001 u (per nucleus)Nuclear binding energy:796.86591365 MeV (per nucleus)
8.66158602 MeV (average binding energy per nucleon)Separation energy:SN = 6.537(9) MeV (first neutron)
SP = 8.454(11) MeV (first proton)Half-life:3.54(1) hDecay constant λ:5.439008008160 × 10-5 s-1Specific activity α:3.599392567413 × 10+17 Bq g-1
9728088.0200373 Ci g-1Spin and parity:
(nuclear angular momentum)2-Magnetic dipole moment:μ(μN) = - 0.67(2)Nuclear g-factor:gl = -0.335Charge radius:4.2887(50) femtometer fmYear of discovery:1940
Radioactive Decay
Half-life T½ = 3.54(1) h (hours) respectively 1.2744 × 104 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 92Zr | 100 % | 3.643(9) MeV | |
Parent Nuclides
Direct parent isotope is: 92Sr.
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 53) and isobaric (same nucleon number A = 92) with Yttrium-92. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 53 | Isobar A = 92 |
|---|
| 29 | 82Cu | |
| 30 | 83Zn | |
| 31 | 84Ga | |
| 32 | 85Ge | |
| 33 | 86As | 92As |
| 34 | 87Se | 92Se |
| 35 | 88Br | 92Br |
| 36 | 89Kr | 92Kr |
| 37 | 90Rb | 92Rb |
| 38 | 91Sr | 92Sr |
| 39 | 92Y | 92Y |
| 40 | 93Zr | 92Zr |
| 41 | 94Nb | 92Nb |
| 42 | 95Mo | 92Mo |
| 43 | 96Tc | 92Tc |
| 44 | 97Ru | 92Ru |
| 45 | 98Rh | 92Rh |
| 46 | 99Pd | 92Pd |
| 47 | 100Ag | 92Ag |
| 48 | 101Cd | |
| 49 | 102In | |
| 50 | 103Sn | |
| 51 | 104Sb | |
| 52 | 105Te | |
External data and identifiers
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/yttrium-92
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