Gallium-69
Properties and data of the isotope 69Ga.
See also: list of Gallium isotopes.
General data
Name of the isotope:Gallium-69; Ga-69Symbol:69Ga or 6931GaMass number A:69 (= number of nucleons)Atomic number Z:31 (= number of protons)Neutrons N:38Isotopic mass:68.925574(8) u (atomic weight of Gallium-69)Nuclide mass:68.9085686 u (calculated nuclear mass without electrons)Mass excess:-69.32737 MeVMass defect:0.6462688 u (per nucleus)Nuclear binding energy:601.99550959 MeV (per nucleus)
8.7245726 MeV (average binding energy per nucleon)Separation energy:SN = 10.3131(19) MeV (first neutron)
SP = 6.6097(14) MeV (first proton)Half-life:stableSpin and parity:
(nuclear angular momentum)3/2-Magnetic dipole moment:μ(μN) = +2.01502(6)Charge radius:3.9973(17) femtometer fmYear of discovery:1923
Parent Nuclides
Direct parent isotopes are: 69Ge, 69Zn.
Occurrence
Comparison of the natural Gallium isotopes including isotopic abundance (mole fraction of the isotope mixture in percent):
| Atomic Mass ma | Quantity | Half-life | Spin |
---|
Gallium Isotopic mixture | 69.723 u | 100 % | | |
Isotope 69Ga | 68.925574(8) u | 60.108(50) % | stable | 3/2- |
Isotope 71Ga | 70.924703(6) u | 39.892(50) % | stable | 3/2- |
NMR data
Nuclear magnetic properties of the NMR active Nuclide 69Ga
Isotope:69Ga-NMRQuantity:60.108(50) %Spin:3/2-Nuclearmagnetic moment
μ/μN:+2.01502(6)Gyromagnetic ratio γ:6.4389 · 107 rad T-1 s-1Nuclear g-factor:gl = 1.3433466666667Quadrupole moment Q:+0.171(2) barn (100 fm2)Line width parameter (factor):l = 389.88 fm4Resonance frequency:v0 = 10.2478 at 1 TRelative Sensitivity:0.06971 (H0 = const.)
1.2035 (v0 = const.)
[related to 1H = 1.000]
Isotones and Isobars
The following table shows the atomic nuclei that are isotonic (same neutron number N = 38) and isobaric (same nucleon number A = 69) with Gallium-69. Naturally occurring isotopes are marked in green; light green = naturally occurring radionuclides.
OZ | Isotone N = 38 | Isobar A = 69 |
20 | 58Ca | |
21 | 59Sc | |
22 | 60Ti | |
23 | 61V | |
24 | 62Cr | |
25 | 63Mn | 69Mn |
26 | 64Fe | 69Fe |
27 | 65Co | 69Co |
28 | 66Ni | 69Ni |
29 | 67Cu | 69Cu |
30 | 68Zn | 69Zn |
31 | 69Ga | 69Ga |
32 | 70Ge | 69Ge |
33 | 71As | 69As |
34 | 72Se | 69Se |
35 | 73Br | 69Br |
36 | 74Kr | 69Kr |
37 | 75Rb | |
38 | 76Sr | |
39 | 77Y | |
40 | 78Zr | |
External data and identifiers
Last update: 2020-10-14
Perma link: https://www.chemlin.org/isotope/gallium-69
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