Isotopes of Lithium
List of known isotopes of the element Lithium.
| Isotope | t½ | % | Spin/parity | Radius | Isotopic mass | Discovery |
|---|---|---|---|---|---|---|
| 4Li | stab. | syn. | 2- | — | 4.027·106 ±227.7 keV/c2 | 1965 |
| 5Li | 1.23 MeV | syn. | 3/2- | — | 5.012·106 ±53.67 keV/c2 | 1941 |
| 6Li | stab. | 4.85 ±1.71 % | 1+ | 2.589 ±0.039 fm | 6.015·106 ±0.00155 keV/c2 | 1921 |
| 7Li | stab. | 95.15 ±1.71 % | 3/2- | 2.444 ±0.042 fm | 7.016·106 ±0.0045 keV/c2 | 1921 |
| 8Li | 839.9 ±9 ms | syn. | 2+ | 2.339 ±0.044 fm | 8.022·106 ±0.05 keV/c2 | 1935 |
| 9Li | 178.3 ±4 ms | syn. | 3/2- | 2.245 ±0.046 fm | 9.026·106 ±0.2 keV/c2 | 1951 |
| 10Li | stab. | syn. | (1- 2-) | — | 1.003·107 ±13.65 keV/c2 | 1975 |
| 11Li | 8.75 ±14 ms | syn. | 3/2- | 2.482 ±0.043 fm | 1.104·107 ±0.66 keV/c2 | 1966 |
| 12Li | stab. | syn. | (1- 2-) | — | 1.205·107 ±32.21 keV/c2 | 2008 |
4LiLithium-4
| Classification | z: 3; n: 1; m: 4 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Spin/parity | 2- |
| Discovery | 1965 |
| Mass excess | 25,320 ±212.1 keV |
| Binding energy | 1,153 ±53.03 keV |
| Single-particle energy | -3,103 ±212.1 keV |
| Neutron separation energy | 11,410 ±2,011 keV |
| Q value for electron capture | 22,890 ±212.1 keV |
5LiLithium-5
| Classification | z: 3; n: 2; m: 5 |
|---|---|
| Half life | 1.23 MeV |
| Natural abundance | synthetic nuclide |
| Spin/parity | 3/2- |
| Decay modes | proton emission |
| Discovery | 1941 |
| Mass excess | 11,670 ±50 keV |
| Binding energy | 5,266 ±10 keV |
| Single-particle energy | -1,965 ±50 keV |
| Neutron separation energy | 21,710 ±217.9 keV |
| Q value for electron capture | 447.6 ±53.85 keV |
| β⁻ decay energy | -25,460 ±2,003 keV |
6LiLithium-6
| Classification | z: 3; n: 3; m: 6 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 4.85 ±1.71 % |
| Spin/parity | 1+ |
| Discovery | 1921 |
| Mass excess | 14,080 ±0.00144 keV |
| Binding energy | 5,332 ±3·10-4 keV |
| Single-particle energy | 4,433 ±20 keV |
| Neutron separation energy | 5,663 ±50 keV |
| Q value for electron capture | -3,506 ±0.053 keV |
| β⁻ decay energy | -4,289 ±5.447 keV |
| β⁻ decay energy with neutron | -31,130 ±2,003 keV |
| Magnetic dipole moment | 0.822 ±3·10-6 μN |
| Electric quadrupole moment | -8.06·10-4 ±6·10-6 b |
7LiLithium-7
| Classification | z: 3; n: 4; m: 7 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 95.15 ±1.71 % |
| Spin/parity | 3/2- |
| Discovery | 1921 |
| Mass excess | 14,900 ±0.00419 keV |
| Binding energy | 5,606 ±6·10-4 keV |
| Single-particle energy | 9,973 ±0.0531 keV |
| Neutron separation energy | 7,251 ±0.0045 keV |
| Q value for electron capture | -11,170 ±7.559 keV |
| β⁻ decay energy | -861.9 ±0.0707 keV |
| β⁻ decay energy with neutron | -11,540 ±5.447 keV |
| Magnetic dipole moment | 3.256 ±1.2·10-5 μN |
| Electric quadrupole moment | -0.04 ±3·10-4 b |
8LiLithium-8
| Classification | z: 3; n: 5; m: 8 |
|---|---|
| Half life | 839.9 ±9 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 2+ |
| Decay modes | β⁻ + α decay; β⁻ decay |
| Discovery | 1935 |
| Mass excess | 20,940 ±0.047 keV |
| Binding energy | 5,159 ±0.0059 keV |
| Single-particle energy | 12,410 ±7.559 keV |
| Neutron separation energy | 2,032 ±0.0472 keV |
| Q value for electron capture | -10,670 ±0.101 keV |
| β⁻ decay energy | 16,000 ±0.0591 keV |
| β⁻ decay energy with neutron | -2,895 ±0.085 keV |
| Magnetic dipole moment | 1.653 ±2·10-5 μN |
| Electric quadrupole moment | 0.0314 ±2·10-4 b |
9LiLithium-9
| Classification | z: 3; n: 6; m: 9 |
|---|---|
| Half life | 178.3 ±4 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 3/2- |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1951 |
| Mass excess | 24,950 ±0.186 keV |
| Binding energy | 5,037 ±0.0207 keV |
| Single-particle energy | 13,940 ±0.2064 keV |
| Neutron separation energy | 4,062 ±0.1922 keV |
| Q value for electron capture | -15,990 ±46.81 keV |
| β⁻ decay energy | 13,600 ±0.2014 keV |
| β⁻ decay energy with neutron | 11,940 ±0.1896 keV |
| Magnetic dipole moment | 3.436 ±6·10-5 μN |
| Electric quadrupole moment | -0.0304 ±2·10-4 b |
10LiLithium-10
| Classification | z: 3; n: 7; m: 10 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Spin/parity | (1- 2-) |
| Discovery | 1975 |
| Mass excess | 33,050 ±12.72 keV |
| Binding energy | 4,531 ±1.272 keV |
| Single-particle energy | 15,170 ±48.51 keV |
| Neutron separation energy | -26.41 ±12.72 keV |
| Q value for electron capture | -16,150 ±93.71 keV |
| β⁻ decay energy | 20,440 ±12.72 keV |
| β⁻ decay energy with neutron | 13,630 ±12.72 keV |
11LiLithium-11
| Classification | z: 3; n: 8; m: 11 |
|---|---|
| Half life | 8.75 ±14 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 3/2- |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1966 |
| Mass excess | 40,720 ±0.615 keV |
| Binding energy | 4,155 ±0.0559 keV |
| Single-particle energy | 15,750 ±92.84 keV |
| Neutron separation energy | 395.6 ±12.73 keV |
| β⁻ decay energy | 20,550 ±0.6591 keV |
| β⁻ decay energy with neutron | 20,040 ±0.6201 keV |
| Magnetic dipole moment | 3.671 ±2·10-4 μN |
| Electric quadrupole moment | -0.0333 ±5·10-4 b |
12LiLithium-12
| Classification | z: 3; n: 9; m: 12 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Spin/parity | (1- 2-) |
| Discovery | 2008 |
| Mass excess | 49,000 ±30 keV |
| Binding energy | 3,791 ±2.5 keV |
| Neutron separation energy | -210 ±30 keV |
| β⁻ decay energy | 23,930 ±30.06 keV |
| β⁻ decay energy with neutron | 20,760 ±30 keV |