Copper-75
Properties and data of the isotope 75Cu.
See also: list of Copper isotopes.
General data
Name of the isotope:Copper-75; Cu-75Symbol:75Cu or 7529CuMass number A:75 (= number of nucleons)Atomic number Z:29 (= number of protons)Neutrons N:46Isotopic mass:74.9415226(25) u (atomic weight of Copper-75)Nuclide mass:74.9256142 u (calculated nuclear mass without electrons)Mass excess:-54.47135 MeVMass defect:0.68398946400001 u (per nucleus)Nuclear binding energy:637.13208178 MeV (per nucleus)
8.49509442 MeV (average binding energy per nucleon)Separation energy:SN = 6.536(7) MeV (first neutron)
SP = 13.3(2) MeV (first proton)Half-life:1.224(3) sDecay constant λ:0.56629671614375 s-1Specific activity α:4.608538639374 × 10+21 Bq g-1
124555098361.48 Ci g-1Spin and parity:
(nuclear angular momentum)5/2(-)Magnetic dipole moment:μ(μN) = +1.0062(13)Quadrupole moment Q:0.269(16) barn (100 fm2)Nuclear g-factor:gl = 0.40248Year of discovery:1985
Radioactive Decay
Half-life T½ = 1.224(3) s.
| Decay mode | Daughter | Probability | Decay energy | γ energy
(intensity) |
|---|
| β- | 75Zn | 96.5 % | 8.088(3) MeV | |
| β-, n | 74Zn | 3.5(6) % | 3.214(3) 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 |
|---|
| 75m1Cu | 61.7(4) keV | 310(8) ns | (1/2-,3/2-) |
| 75m2Cu | 66.2(4) keV | 149(6) ns | (1/2-,3/2-) |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 46) and isobaric (same nucleon number A = 75) with Copper-75. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
| OZ | Isotone N = 46 | Isobar A = 75 |
|---|
| 25 | 71Mn | |
| 26 | 72Fe | |
| 27 | 73Co | 75Co |
| 28 | 74Ni | 75Ni |
| 29 | 75Cu | 75Cu |
| 30 | 76Zn | 75Zn |
| 31 | 77Ga | 75Ga |
| 32 | 78Ge | 75Ge |
| 33 | 79As | 75As |
| 34 | 80Se | 75Se |
| 35 | 81Br | 75Br |
| 36 | 82Kr | 75Kr |
| 37 | 83Rb | 75Rb |
| 38 | 84Sr | 75Sr |
| 39 | 85Y | |
| 40 | 86Zr | |
| 41 | 87Nb | |
| 42 | 88Mo | |
| 43 | 89Tc | |
| 44 | 90Ru | |
| 45 | 91Rh | |
| 46 | 92Pd | |
| 47 | 93Ag | |
| 48 | 94Cd | |
External data and identifiers
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/copper-75
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