Copper-76
Properties and data of the isotope 76Cu.
See also: list of Copper isotopes.
General data
Name of the isotope:Copper-76; Cu-76Symbol:76Cu or 7629CuMass number A:76 (= number of nucleons)Atomic number Z:29 (= number of protons)Neutrons N:47Isotopic mass:75.945275(7) u (atomic weight of Copper-76)Nuclide mass:75.9293666 u (calculated nuclear mass without electrons)Mass excess:-50.97601 MeVMass defect:0.68890198000001 u (per nucleus)Nuclear binding energy:641.70806096 MeV (per nucleus)
8.44352712 MeV (average binding energy per nucleon)Separation energy:SN = 4.576(7) MeV (first neutron)
SP = 14.23(30) MeV (first proton)Half-life:641(6) msDecay constant λ:1.0813528557877 s-1Specific activity α:8.682745622464 × 10+21 Bq g-1
234668800607.16 Ci g-1Spin and parity:
(nuclear angular momentum)3-Magnetic dipole moment:μ(μN) = -1.0907(15)Nuclear g-factor:gl = -0.36356666666667Year of discovery:1987
Radioactive Decay
Half-life T½ = 641(6) ms respectively 6.41 × 10-1 seconds s.
| Decay mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 76Zn | 97 % | 11.327(7) MeV | |
| β-, n | 75Zn | 3(2) % | 3.512(17) MeV | |
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 |
|---|
| 76mCu | +y keV | 1.27(30) s | |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 47) and isobaric (same nucleon number A = 76) with Copper-76. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| OZ | Isotone N = 47 | Isobar A = 76 |
|---|
| 26 | 73Fe | |
| 27 | 74Co | 76Co |
| 28 | 75Ni | 76Ni |
| 29 | 76Cu | 76Cu |
| 30 | 77Zn | 76Zn |
| 31 | 78Ga | 76Ga |
| 32 | 79Ge | 76Ge |
| 33 | 80As | 76As |
| 34 | 81Se | 76Se |
| 35 | 82Br | 76Br |
| 36 | 83Kr | 76Kr |
| 37 | 84Rb | 76Rb |
| 38 | 85Sr | 76Sr |
| 39 | 86Y | 76Y |
| 40 | 87Zr | |
| 41 | 88Nb | |
| 42 | 89Mo | |
| 43 | 90Tc | |
| 44 | 91Ru | |
| 45 | 92Rh | |
| 46 | 93Pd | |
| 47 | 94Ag | |
| 48 | 95Cd | |
| 49 | 96In | |
External data and identifiers
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/copper-76
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