Zinc-71
Properties and data of the isotope 71Zn.
See also: list of Zinc isotopes.
General data
Name of the isotope:Zinc-71; Zn-71Symbol:71Zn or 7130ZnMass number A:71 (= number of nucleons)Atomic number Z:30 (= number of protons)Neutrons N:41Isotopic mass:70.9277196(28) u (atomic weight of Zinc-71)Nuclide mass:70.9112627 u (calculated nuclear mass without electrons)Mass excess:-67.32876 MeVMass defect:0.662292916 u (per nucleus)Nuclear binding energy:616.9218775 MeV (per nucleus)
8.68904053 MeV (average binding energy per nucleon)Separation energy:SN = 5.835(3) MeV (first neutron)
SP = 11.6414(29) MeV (first proton)Half-life:2.45(10) minDecay constant λ:0.0047152869425847 s-1Specific activity α:4.056588880466 × 10+19 Bq g-1
1096375373.0991 Ci g-1Spin and parity:
(nuclear angular momentum)1/2-Magnetic dipole moment:μ(μN) = +0.551(1)Nuclear g-factor:gl = 1.102Year of discovery:1955
Radioactive Decay
Half-life T½ = 2.45(10) min (minutes) respectively 1.47 × 102 seconds s.
Decay mode | Daughter | Probability | Decay energy | γ energy (intensity) |
---|
β- | 71Ga | 100 % | 2.8104(28) MeV | |
Parent Nuclides
Direct parent isotope is: 71Cu.
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 |
---|
71mZn | 157.7(13) keV | 3.96(5) h | 9/2+ |
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 41) and isobaric (same nucleon number A = 71) with Zinc-71. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 41 | Isobar A = 71 |
22 | 63Ti | |
23 | 64V | |
24 | 65Cr | |
25 | 66Mn | 71Mn |
26 | 67Fe | 71Fe |
27 | 68Co | 71Co |
28 | 69Ni | 71Ni |
29 | 70Cu | 71Cu |
30 | 71Zn | 71Zn |
31 | 72Ga | 71Ga |
32 | 73Ge | 71Ge |
33 | 74As | 71As |
34 | 75Se | 71Se |
35 | 76Br | 71Br |
36 | 77Kr | 71Kr |
37 | 78Rb | 71Rb |
38 | 79Sr | |
39 | 80Y | |
40 | 81Zr | |
41 | 82Nb | |
42 | 83Mo | |
44 | 85Ru | |
External data and identifiers
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/zinc-71
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