Isotopes of Chlorine
List of known isotopes of the element Chlorine.
| Isotope | t½ | % | Spin/parity | Radius | Isotopic mass | Discovery |
|---|---|---|---|---|---|---|
| 29Cl | 20 ns | syn. | (1/2+) | — | 2.901·107 ±203 keV/c2 | 1993 |
| 30Cl | 30 ns | syn. | (3+) | — | 3·107 ±25.63 keV/c2 | 2018 |
| 31Cl | 190 ±1 ms | syn. | 3/2+ | — | 3.099·107 ±3.7 keV/c2 | 1977 |
| 32Cl | 298 ±1 ms | syn. | 1+ | — | 3.198·107 ±0.603 keV/c2 | 1953 |
| 33Cl | 2.511 ±4 s | syn. | 3/2+ | — | 3.297·107 ±0.419 keV/c2 | 1940 |
| 34Cl | 1.526 ±4 s | syn. | 0+ | — | 3.397·107 ±0.052 keV/c2 | 1934 |
| 35Cl | stab. | 75.8 ±0.17 % | 3/2+ | 3.365 ±0.0191 fm | 3.496·107 ±0.038 keV/c2 | 1919 |
| 36Cl | 301,300 ±15 a | syn. | 2+ | — | 3.596·107 ±0.038 keV/c2 | 1941 |
| 37Cl | stab. | 24.2 ±0.17 % | 3/2+ | 3.384 ±0.017 fm | 3.696·107 ±0.055 keV/c2 | 1919 |
| 38Cl | 37.23 ±14 m | syn. | 2- | — | 3.796·107 ±0.105 keV/c2 | 1940 |
| 39Cl | 56.2 ±6 m | syn. | 3/2+ | — | 3.896·107 ±1.859 keV/c2 | 1949 |
| 40Cl | 1.35 ±3 m | syn. | 2- | — | 3.997·107 ±34.42 keV/c2 | 1956 |
| 41Cl | 38.4 ±8 s | syn. | (1/2+) | — | 4.097·107 ±73.77 keV/c2 | 1971 |
| 42Cl | 6.8 ±3 s | syn. | (2-) | — | 4.197·107 ±64 keV/c2 | 1971 |
| 43Cl | 3.13 ±9 s | syn. | (1/2+) | — | 4.297·107 ±66.4 keV/c2 | 1976 |
| 44Cl | 0.56 ±11 s | syn. | (2-) | — | 4.397·107 ±91.85 keV/c2 | 1979 |
| 45Cl | 413 ±25 ms | syn. | (1/2+) | — | 4.498·107 ±146.1 keV/c2 | 1979 |
| 46Cl | 232 ±2 ms | syn. | (2-) | — | 4.598·107 ±104.4 keV/c2 | 1989 |
| 47Cl | 101 ±6 ms | syn. | — | — | 4.698·107 ±215 keV/c2 | 1989 |
| 48Cl | stab. | syn. | — | — | 4.799·107 ±537 keV/c2 | 1989 |
| 49Cl | 170 ns | syn. | — | — | 4.9·107 ±429 keV/c2 | 1989 |
| 50Cl | stab. | syn. | — | — | 5·107 ±429 keV/c2 | 2009 |
| 51Cl | stab. | syn. | — | — | 5.101·107 ±751 keV/c2 | 1990 |
| 52Cl | stab. | syn. | — | — | 5.202·107 ±751 keV/c2 | 2018 |
29ClChlorine-29
| Classification | z: 17; n: 12; m: 29 |
|---|---|
| Half life | 20 ns |
| Natural abundance | synthetic nuclide |
| Spin/parity | (1/2+) |
| Decay modes | proton emission |
| Discovery | 1993 |
| Mass excess | 14,020 ±189 keV |
| Binding energy | 7,129 ±7 keV |
| Single-particle energy | -2,660 ±100 keV |
| Neutron separation energy | 22,310 ±534 keV |
| Q value for electron capture | 17,110 ±189.4 keV |
| β⁻ decay energy | -23,950 ±478 keV |
30ClChlorine-30
| Classification | z: 17; n: 13; m: 30 |
|---|---|
| Half life | 30 ns |
| Natural abundance | synthetic nuclide |
| Spin/parity | (3+) |
| Decay modes | proton emission |
| Discovery | 2018 |
| Mass excess | 4,674 ±23.87 keV |
| Binding energy | 7,472 ±0.7959 keV |
| Single-particle energy | -480 ±20 keV |
| Neutron separation energy | 17,410 ±190 keV |
| Q value for electron capture | 18,730 ±23.87 keV |
| β⁻ decay energy | -17,400 ±180 keV |
| β⁻ decay energy with neutron | -41,370 ±439 keV |
31ClChlorine-31
| Classification | z: 17; n: 14; m: 31 |
|---|---|
| Half life | 190 ±1 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 3/2+ |
| Decay modes | electron capture + β⁺ decay; electron capture + proton emission |
| Discovery | 1977 |
| Mass excess | -7,035 ±3.447 keV |
| Binding energy | 7,869 ±0.1112 keV |
| Single-particle energy | 264.2 ±3.452 keV |
| Neutron separation energy | 19,780 ±24.12 keV |
| Q value for electron capture | 12,000 ±3.455 keV |
| β⁻ decay energy | -18,360 ±200 keV |
| β⁻ decay energy with neutron | -37,180 ±179 keV |
32ClChlorine-32
| Classification | z: 17; n: 15; m: 32 |
|---|---|
| Half life | 298 ±1 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | 1+ |
| Decay modes | electron capture + β⁺ decay; electron capture + α decay; electron capture + proton emission |
| Discovery | 1953 |
| Mass excess | -13,340 ±0.562 keV |
| Binding energy | 8,072 ±0.0176 keV |
| Single-particle energy | 1,581 ±0.5343 keV |
| Neutron separation energy | 14,370 ±3.492 keV |
| Q value for electron capture | 12,680 ±0.562 keV |
| β⁻ decay energy | -11,140 ±1.856 keV |
| β⁻ decay energy with neutron | -32,740 ±200 keV |
| Magnetic dipole moment | 1.115 ±0.006 μN |
33ClChlorine-33
| Classification | z: 17; n: 16; m: 33 |
|---|---|
| Half life | 2.511 ±4 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 3/2+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1940 |
| Mass excess | -21,010 ±0.391 keV |
| Binding energy | 8,304 ±0.0118 keV |
| Single-particle energy | 2,276 ±0.3908 keV |
| Neutron separation energy | 15,730 ±0.6843 keV |
| Q value for electron capture | 5,582 ±0.391 keV |
| β⁻ decay energy | -11,620 ±0.5596 keV |
| β⁻ decay energy with neutron | -26,880 ±1.812 keV |
| Magnetic dipole moment | 0.7547 ±2.999·10-4 μN |
34ClChlorine-34
| Classification | z: 17; n: 17; m: 34 |
|---|---|
| Half life | 1.526 ±4 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | 0+ |
| Decay modes | electron capture + β⁺ decay |
| Discovery | 1934 |
| Mass excess | -24,450 ±0.049 keV |
| Binding energy | 8,398 ±0.0014 keV |
| Single-particle energy | 5,143 ±0.0487 keV |
| Neutron separation energy | 11,500 ±0.3938 keV |
| Q value for electron capture | 5,491 ±0.067 keV |
| β⁻ decay energy | -6,062 ±0.0631 keV |
| β⁻ decay energy with neutron | -23,130 ±0.4035 keV |
35ClChlorine-35
| Classification | z: 17; n: 18; m: 35 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 75.8 ±0.17 % |
| Spin/parity | 3/2+ |
| Discovery | 1919 |
| Mass excess | -29,020 ±0.035 keV |
| Binding energy | 8,520 ±0.001 keV |
| Single-particle energy | 6,370 ±0.0424 keV |
| Neutron separation energy | 12,640 ±0.0506 keV |
| Q value for electron capture | -167.4 ±0.053 keV |
| β⁻ decay energy | -5,967 ±0.6794 keV |
| β⁻ decay energy with neutron | -18,710 ±0.0785 keV |
| Magnetic dipole moment | 0.8217 ±2·10-5 μN |
| Electric quadrupole moment | -0.0817 ±8·10-4 b |
36ClChlorine-36
| Classification | z: 17; n: 19; m: 36 |
|---|---|
| Half life | 301,300 ±15 a |
| Natural abundance | synthetic nuclide |
| Spin/parity | 2+ |
| Decay modes | β⁻ decay; electron capture + β⁺ decay |
| Discovery | 1941 |
| Mass excess | -29,530 ±0.036 keV |
| Binding energy | 8,521 ±0.001 keV |
| Single-particle energy | 7,964 ±0.0262 keV |
| Neutron separation energy | 8,579 ±0.0048 keV |
| Q value for electron capture | 1,142 ±0.191 keV |
| β⁻ decay energy | 709.5 ±0.0449 keV |
| β⁻ decay energy with neutron | -14,550 ±0.6794 keV |
| Magnetic dipole moment | 1.284 ±2.999·10-4 μN |
| Electric quadrupole moment | -0.178 ±0.004 b |
37ClChlorine-37
| Classification | z: 17; n: 20; m: 37 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | 24.2 ±0.17 % |
| Spin/parity | 3/2+ |
| Discovery | 1919 |
| Mass excess | -31,770 ±0.052 keV |
| Binding energy | 8,570 ±0.0014 keV |
| Single-particle energy | 8,386 ±0.1861 keV |
| Neutron separation energy | 10,310 ±0.064 keV |
| Q value for electron capture | -4,866 ±0.205 keV |
| β⁻ decay energy | -813.9 ±0.2 keV |
| β⁻ decay energy with neutron | -9,602 ±0.0584 keV |
| Magnetic dipole moment | 0.684 ±1·10-5 μN |
| Electric quadrupole moment | -0.0644 ±5.999·10-4 b |
38ClChlorine-38
| Classification | z: 17; n: 21; m: 38 |
|---|---|
| Half life | 37.23 ±14 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 2- |
| Decay modes | β⁻ decay |
| Discovery | 1940 |
| Mass excess | -29,800 ±0.098 keV |
| Binding energy | 8,505 ±0.0026 keV |
| Single-particle energy | 10,190 ±0.2134 keV |
| Neutron separation energy | 6,107 ±0.0832 keV |
| Q value for electron capture | -2,937 ±7.1 keV |
| β⁻ decay energy | 4,916 ±0.2182 keV |
| β⁻ decay energy with neutron | -6,922 ±0.2166 keV |
| Magnetic dipole moment | 2.05 ±0.02 μN |
39ClChlorine-39
| Classification | z: 17; n: 22; m: 39 |
|---|---|
| Half life | 56.2 ±6 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 3/2+ |
| Decay modes | β⁻ decay |
| Discovery | 1949 |
| Mass excess | -29,810 ±1.732 keV |
| Binding energy | 8,494 ±0.0444 keV |
| Single-particle energy | 10,220 ±7.377 keV |
| Neutron separation energy | 8,073 ±1.733 keV |
| Q value for electron capture | -6,638 ±50.03 keV |
| β⁻ decay energy | 3,441 ±5.291 keV |
| β⁻ decay energy with neutron | -3,157 ±1.743 keV |
40ClChlorine-40
| Classification | z: 17; n: 23; m: 40 |
|---|---|
| Half life | 1.35 ±3 m |
| Natural abundance | synthetic nuclide |
| Spin/parity | 2- |
| Decay modes | β⁻ decay |
| Discovery | 1956 |
| Mass excess | -27,560 ±32.06 keV |
| Binding energy | 8,427 ±0.8016 keV |
| Single-particle energy | 11,680 ±59.39 keV |
| Neutron separation energy | 5,828 ±32.11 keV |
| Q value for electron capture | -4,720 ±32.31 keV |
| β⁻ decay energy | 7,482 ±32.06 keV |
| β⁻ decay energy with neutron | -2,387 ±32.45 keV |
41ClChlorine-41
| Classification | z: 17; n: 24; m: 41 |
|---|---|
| Half life | 38.4 ±8 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (1/2+) |
| Decay modes | β⁻ decay |
| Discovery | 1971 |
| Mass excess | -27,310 ±68.72 keV |
| Binding energy | 8,412 ±1.676 keV |
| Single-particle energy | 11,750 ±68.83 keV |
| Neutron separation energy | 7,820 ±75.83 keV |
| Q value for electron capture | -8,299 ±68.84 keV |
| β⁻ decay energy | 5,760 ±68.72 keV |
| β⁻ decay energy with neutron | -338.7 ±68.72 keV |
42ClChlorine-42
| Classification | z: 17; n: 25; m: 42 |
|---|---|
| Half life | 6.8 ±3 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (2-) |
| Decay modes | β⁻ decay |
| Discovery | 1971 |
| Mass excess | -24,840 ±59.61 keV |
| Binding energy | 8,345 ±1.419 keV |
| Single-particle energy | 13,110 ±59.75 keV |
| Neutron separation energy | 5,595 ±90.97 keV |
| Q value for electron capture | -7,195 ±59.68 keV |
| β⁻ decay energy | 9,590 ±59.89 keV |
| β⁻ decay energy with neutron | 164.4 ±59.61 keV |
43ClChlorine-43
| Classification | z: 17; n: 26; m: 43 |
|---|---|
| Half life | 3.13 ±9 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (1/2+) |
| Decay modes | β⁻ decay |
| Discovery | 1976 |
| Mass excess | -24,160 ±61.85 keV |
| Binding energy | 8,323 ±1.438 keV |
| Single-particle energy | 13,810 ±61.92 keV |
| Neutron separation energy | 7,399 ±85.9 keV |
| Q value for electron capture | -11,970 ±62.05 keV |
| β⁻ decay energy | 7,850 ±62.08 keV |
| β⁻ decay energy with neutron | 2,191 ±62.12 keV |
44ClChlorine-44
| Classification | z: 17; n: 27; m: 44 |
|---|---|
| Half life | 0.56 ±11 s |
| Natural abundance | synthetic nuclide |
| Spin/parity | (2-) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1979 |
| Mass excess | -20,480 ±85.56 keV |
| Binding energy | 8,234 ±1.944 keV |
| Single-particle energy | 15,570 ±85.71 keV |
| Neutron separation energy | 4,390 ±105.5 keV |
| Q value for electron capture | -11,280 ±85.72 keV |
| β⁻ decay energy | 12,190 ±85.58 keV |
| β⁻ decay energy with neutron | 3,459 ±85.73 keV |
| Magnetic dipole moment | -0.5498 ±4·10-4 μN |
45ClChlorine-45
| Classification | z: 17; n: 28; m: 45 |
|---|---|
| Half life | 413 ±25 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (1/2+) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1979 |
| Mass excess | -18,270 ±136.1 keV |
| Binding energy | 8,181 ±3.025 keV |
| Single-particle energy | 16,340 ±136.2 keV |
| Neutron separation energy | 5,854 ±160.8 keV |
| Q value for electron capture | -14,930 ±329.4 keV |
| β⁻ decay energy | 11,500 ±136.1 keV |
| β⁻ decay energy with neutron | 6,339 ±136.1 keV |
46ClChlorine-46
| Classification | z: 17; n: 29; m: 46 |
|---|---|
| Half life | 232 ±2 ms |
| Natural abundance | synthetic nuclide |
| Spin/parity | (2-) |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1989 |
| Mass excess | -13,740 ±97.24 keV |
| Binding energy | 8,080 ±2.114 keV |
| Single-particle energy | 17,680 ±315 keV |
| Neutron separation energy | 3,543 ±167.3 keV |
| Q value for electron capture | -14,380 ±411.6 keV |
| β⁻ decay energy | 16,030 ±97.27 keV |
| β⁻ decay energy with neutron | 7,964 ±97.25 keV |
47ClChlorine-47
| Classification | z: 17; n: 30; m: 47 |
|---|---|
| Half life | 101 ±6 ms |
| Natural abundance | synthetic nuclide |
| Decay modes | β⁻ decay; β⁻ decay with neutron emission |
| Discovery | 1989 |
| Mass excess | -9,580 ±200 keV |
| Binding energy | 7,992 ±4 keV |
| Single-particle energy | 17,500 ±447 keV |
| Neutron separation energy | 3,917 ±223 keV |
| Q value for electron capture | -16,780 ±447.2 keV |
| β⁻ decay energy | 15,780 ±200 keV |
| β⁻ decay energy with neutron | 12,120 ±200 keV |
48ClChlorine-48
| Classification | z: 17; n: 31; m: 48 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Discovery | 1989 |
| Mass excess | -4,280 ±500 keV |
| Binding energy | 7,883 ±10 keV |
| Single-particle energy | 18,770 ±640 keV |
| Neutron separation energy | 2,771 ±539 keV |
| Q value for electron capture | -16,670 ±707.1 keV |
| β⁻ decay energy | 18,070 ±500 keV |
| β⁻ decay energy with neutron | 13,010 ±500 keV |
49ClChlorine-49
| Classification | z: 17; n: 32; m: 49 |
|---|---|
| Half life | 170 ns |
| Natural abundance | synthetic nuclide |
| Decay modes | β⁻ decay |
| Discovery | 1989 |
| Mass excess | 740 ±400 keV |
| Binding energy | 7,785 ±8 keV |
| Single-particle energy | 18,930 ±640 keV |
| Neutron separation energy | 3,051 ±640 keV |
| Q value for electron capture | -19,660 ±707 keV |
| β⁻ decay energy | 17,800 ±565 keV |
| β⁻ decay energy with neutron | 15,020 ±400 keV |
50ClChlorine-50
| Classification | z: 17; n: 33; m: 50 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Discovery | 2009 |
| Mass excess | 7,700 ±400 keV |
| Binding energy | 7,651 ±8 keV |
| Single-particle energy | 19,980 ±707 keV |
| Neutron separation energy | 1,111 ±565 keV |
| β⁻ decay energy | 20,930 ±640 keV |
| β⁻ decay energy with neutron | 16,680 ±565 keV |
51ClChlorine-51
| Classification | z: 17; n: 34; m: 51 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Discovery | 1990 |
| Mass excess | 14,290 ±700 keV |
| Binding energy | 7,530 ±14 keV |
| Neutron separation energy | 1,481 ±806 keV |
| β⁻ decay energy | 20,780 ±806 keV |
| β⁻ decay energy with neutron | 19,440 ±860 keV |
52ClChlorine-52
| Classification | z: 17; n: 35; m: 52 |
|---|---|
| Half life | stable nuclide |
| Natural abundance | synthetic nuclide |
| Discovery | 2018 |
| Mass excess | 22,360 ±700 keV |
| Binding energy | 7,386 ±13 keV |
| Neutron separation energy | 2 ±989 keV |
| β⁻ decay energy | 23,730 ±922 keV |
| β⁻ decay energy with neutron | 20,770 ±806 keV |