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Zinc-69

Properties and data of the isotope 69Zn.


Contents

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-1
Spin 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
DaughterProbabilityDecay energyγ energy
(intensity)
β-69Ga100 %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 IsomerExcitation EnergyHalf-lifeSpin
69mZn438.636(18) keV13.756(18) h9/2+

 

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.

 

ZIsotone N = 39Isobar A = 69
2160Sc
2261Ti
2362V
2463Cr
2564Mn69Mn
2665Fe69Fe
2766Co69Co
2867Ni69Ni
2968Cu69Cu
3069Zn69Zn
3170Ga69Ga
3271Ge69Ge
3372As69As
3473Se69Se
3574Br69Br
3675Kr69Kr
3776Rb
3877Sr
3978Y
4079Zr
4281Mo

 

External data and identifiers

Adopted Levels, Gammas:NuDat 69Zn

 


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Last update: 2020-10-14


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