Yttrium-88
Properties and data of the isotope 88Y.
See also: List of individual Yttrium isotopes (and general data sources).
General data
Name of the isotope:Yttrium-88; Y-88Symbol:88Y or 8839YMass number A:88 (= number of nucleons)Atomic number Z:39 (= number of protons)Neutrons N:49Nucleon pairing (Z - N):odd - oddNuclear ratio (N/Z ratio):1.2564102564103 (= neutron-proton ratio)Neutron excess (N-Z):10Isotopic mass:87.9095013(16) u (atomic weight of Yttrium-88)Nuclide mass:87.8881076 u (calculated nuclear mass without electrons)Mass excess:-84.299 MeVMass defect:0.820255832 u (per nucleus)Nuclear binding energy:764.06338597 MeV (per nucleus)
8.68253848 MeV (average binding energy per nucleon)Separation energy:SN = 9.3520(19) MeV (first neutron)
SP = 6.7079(15) MeV (first proton)Half-life:106.626(21) dDecay constant λ:7.523996785058 × 10-8 s-1Specific activity α:5.208111318314 × 10+14 Bq g-1
14075.976535984 Ci g-1Spin and parity:
(nuclear angular momentum)4-Magnetic dipole moment:μ(μN) = - 0.42(1)Quadrupole moment Q:+0.16(3) barn (100 fm2)Nuclear g-factor:gl = -0.105Charge radius:4.2441(21) femtometer fmYear of discovery:1948
Radioactive Decay
Half-life T½ = 106.626(21) d respectively 9.2124864 × 106 seconds s.
Decay
mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| EC/β+ | 88Sr | 100 % | 3.6226(15) MeV | |
Parent Nuclides
Direct parent isotope is: 88Zr.
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 |
|---|
| 88m1Y | 392.86(9) keV | 0.301(3) ms | 1+ |
| 88m2Y | 674.55(4) keV | 13.98(17) ms | 8+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 49) and isobaric (same nucleon number A = 88) with Yttrium-88. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| Z | Isotone N = 49 | Isobar A = 88 |
|---|
| 27 | 76Co | |
| 28 | 77Ni | |
| 29 | 78Cu | |
| 30 | 79Zn | |
| 31 | 80Ga | |
| 32 | 81Ge | 88Ge |
| 33 | 82As | 88As |
| 34 | 83Se | 88Se |
| 35 | 84Br | 88Br |
| 36 | 85Kr | 88Kr |
| 37 | 86Rb | 88Rb |
| 38 | 87Sr | 88Sr |
| 39 | 88Y | 88Y |
| 40 | 89Zr | 88Zr |
| 41 | 90Nb | 88Nb |
| 42 | 91Mo | 88Mo |
| 43 | 92Tc | 88Tc |
| 44 | 93Ru | 88Ru |
| 45 | 94Rh | |
| 46 | 95Pd | |
| 47 | 96Ag | |
| 48 | 97Cd | |
| 49 | 98In | |
| 50 | 99Sn | |
External data and identifiers
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/yttrium-88
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