Cl
Chlorine
Z 17 35.45 g/molHalogen
| 35Cl | 18 | 34.9689 | -29,013.53 | 75.8% | Stable | 3/2+ | --- | 1919 |
| 37Cl | 20 | 36.9659 | -31,761.55 | 24.2% | Stable | 3/2+ | --- | 1919 |
| 28Cl | 11 | 28.0303 | 28,270.0 | --- | --- | (1+) | p→27S(100%) | 2018 |
| 29Cl | 12 | 29.0151 | 14,020.0 | --- | 5.4 zs | (1/2+) | p→28S(100%) | 1993 |
| 30Cl | 13 | 30.005 | 4,675.0 | --- | --- | (3+) | p→29S(100%) | 2018 |
| 31Cl | 14 | 30.9924 | -7,035.0 | --- | 190.0 ms | 3/2+ | β⁺→31S(97.6%) β⁺p→30P(2.4%) | 1977 |
| 32Cl | 15 | 31.9857 | -13,334.7 | --- | 298.0 ms | 1+ | β⁺→32S(99.92%) β⁺α→28Si(0.054%) β⁺p→31P(0.026%) | 1953 |
| 33Cl | 16 | 32.9775 | -21,003.3 | --- | 2.5 s | 3/2+ | β⁺→33S(100%) | 1940 |
| 34Cl | 17 | 33.9738 | -24,440.09 | --- | 1.53 s | 0+ | β⁺→34S(100%) | 1934 |
| 34mCl | 17 | 33.9739 | -24,293.73 | --- | 31.99 m | 3+ | β⁺→34S(55.4%) γ→34Cl(44.6%) | 1965 |
| 36Cl | 19 | 35.9683 | -29,522.01 | --- | 301.3 ky | 2+ | β⁻→36Ar(98.1%) β⁺→36S(1.9%) | 1941 |
| 38Cl | 21 | 37.968 | -29,798.12 | --- | 37.23 m | 2- | β⁻→38Ar(100%) | 1940 |
| 38mCl | 21 | 37.9687 | -29,126.75 | --- | 715.0 ms | 5- | γ→38Cl(100%) | 1954 |
| 39Cl | 22 | 38.968 | -29,800.2 | --- | 56.2 m | 3/2+ | β⁻→39Ar(100%) | 1949 |
| 40Cl | 23 | 39.9704 | -27,560.0 | --- | 1.35 m | 2- | β⁻→40Ar(100%) | 1956 |
| 41Cl | 24 | 40.9707 | -27,310.0 | --- | 38.4 s | (1/2+) | β⁻→41Ar(100%) | 1971 |
| 42Cl | 25 | 41.9733 | -24,830.0 | --- | 6.8 s | (2-) | β⁻→42Ar(100%) β⁻n→41Ar | 1971 |
| 43Cl | 26 | 42.9741 | -24,160.0 | --- | 3.13 s | (3/2+) | β⁻→43Ar(100%) β⁻n→42Ar | 1976 |
| 44Cl | 27 | 43.978 | -20,480.0 | --- | 562.0 ms | (2-) | β⁻→44Ar(100%) β⁻n→43Ar(<8%) | 1979 |
| 45Cl | 28 | 44.9804 | -18,260.0 | --- | 413.0 ms | (3/2+) | β⁻→45Ar(76%) β⁻n→44Ar(24%) | 1979 |
| 46Cl | 29 | 45.9853 | -13,730.0 | --- | 232.0 ms | (2-) | β⁻n→45Ar(60%) β⁻→46Ar(40%) β⁻n→44Ar | 1989 |
| 47Cl | 30 | 46.9897 | -9,580.0 | --- | 101.0 ms | (3/2+) | β⁻→47Ar(100%) β⁻n→46Ar(<3%) β⁻n→45Ar | 1989 |
| 48Cl | 31 | 47.9954 | -4,280.0 | --- | 30.0 ms | --- | β⁻→48Ar β⁻n→47Ar β⁻n→46Ar | 1989 |
| 49Cl | 32 | 49.0008 | 740.0 | --- | 35.0 ms | (3/2+) | β⁻→49Ar β⁻n→48Ar β⁻n→47Ar | 1989 |
| 50Cl | 33 | 50.0083 | 7,700.0 | --- | 10.0 ms | --- | β⁻→50Ar β⁻n→49Ar β⁻n→48Ar | 2009 |
| 51Cl | 34 | 51.0153 | 14,290.0 | --- | 5.0 ms | (3/2+) | β⁻→51Ar β⁻n→50Ar β⁻n→49Ar | 1990 |
| 52Cl | 35 | 52.024 | 22,360.0 | --- | 2.0 ms | --- | β⁻→52Ar β⁻n→51Ar β⁻n→50Ar | 2018 |