Zinc-69
Properties and data of the isotope 69Zn.
See also: list of Zinc isotopes.
General data
Name of the isotope:Zinc-69; Zn-69Symbol:69Zn or 6930ZnMass number A:69 (= number of nucleons)Atomic number Z:30 (= number of protons)Neutrons N:39Isotopic mass:68.9265504(9) u (atomic weight of Zinc-69)Nuclide mass:68.9100935 u (calculated nuclear mass without electrons)Mass excess:-68.41786 MeVMass defect:0.646132284 u (per nucleus)Nuclear binding energy:601.86834575 MeV (per nucleus)
8.72272965 MeV (average binding energy per nucleon)Separation energy:SN = 6.48207(16) MeV (first neutron)
SP = 10.1398(18) MeV (first proton)Half-life:56.4(9) minDecay constant λ:0.00020483072711582 s-1Specific activity α:1.813999251668 × 10+18 Bq g-1
49027006.801859 Ci g-1Spin and parity:
(nuclear angular momentum)1/2-Magnetic dipole moment:μ(μN) = +0.557(2)Nuclear g-factor:gl = 1.114Year of discovery:1937
Radioactive Decay
Half-life T½ = 56.4(9) min (minutes) respectively 3.384 × 103 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 69Ga | 100 % | 0.9100(14) MeV | |
Parent Nuclides
Direct parent isotope is: 69Cu.
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 |
---|
69mZn | 438.636(18) keV | 13.756(18) h | 9/2+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 39) and isobaric (same nucleon number A = 69) with Zinc-69. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
Z | Isotone N = 39 | Isobar A = 69 |
21 | 60Sc | |
22 | 61Ti | |
23 | 62V | |
24 | 63Cr | |
25 | 64Mn | 69Mn |
26 | 65Fe | 69Fe |
27 | 66Co | 69Co |
28 | 67Ni | 69Ni |
29 | 68Cu | 69Cu |
30 | 69Zn | 69Zn |
31 | 70Ga | 69Ga |
32 | 71Ge | 69Ge |
33 | 72As | 69As |
34 | 73Se | 69Se |
35 | 74Br | 69Br |
36 | 75Kr | 69Kr |
37 | 76Rb | |
38 | 77Sr | |
39 | 78Y | |
40 | 79Zr | |
42 | 81Mo | |
External data and identifiers
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/zinc-69
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