Al
Aluminium
Z 13 26.982 g/molPost-Transition Metal
| 27Al | 14 | 26.9815 | -17,196.86 | 100.0% | Stable | 5/2+ | --- | 1922 |
| 21Al | 8 | 21.0291 | 27,090.0 | --- | --- | (5/2+) | p→20Mg | --- |
| 22Al | 9 | 22.0195 | 18,200.0 | --- | 91.1 ms | (4+) | β⁺p→21Na(55%) β⁺→22Mg(43.862%) β⁺p→20Ne(1.1%) β⁺α→18Ne(0.038%) | 1982 |
| 23Al | 10 | 23.0072 | 6,748.1 | --- | 446.0 ms | 5/2+ | β⁺→23Mg(98.78%) β⁺p→22Na(1.22%) | 1969 |
| 24Al | 11 | 23.9999 | -48.81 | --- | 2.05 s | 4+ | β⁺→24Mg(99.963%) β⁺α→20Ne(0.035%) β⁺p→23Na(0.002%) | 1953 |
| 24mAl | 11 | 24.0004 | 376.99 | --- | 130.0 ms | 1+ | γ→24Al(82.5%) β⁺→24Mg(17.472%) β⁺α→20Ne(0.028%) | 1968 |
| 25Al | 12 | 24.9904 | -8,915.97 | --- | 7.17 s | 5/2+ | β⁺→25Mg(100%) | 1953 |
| 26Al | 13 | 25.9869 | -12,210.14 | --- | 717.0 ky | 5+ | β⁺→26Mg(100%) | 1934 |
| 26mAl | 13 | 25.9871 | -11,981.83 | --- | 6.35 s | 0+ | β⁺→26Mg(100%) | 1934 |
| 28Al | 15 | 27.9819 | -16,850.72 | --- | 2.24 m | 3+ | β⁻→28Si(100%) | 1934 |
| 29Al | 16 | 28.9805 | -18,207.8 | --- | 6.56 m | 5/2+ | β⁻→29Si(100%) | 1939 |
| 30Al | 17 | 29.983 | -15,864.1 | --- | 3.62 s | 3+ | β⁻→30Si(100%) | 1961 |
| 31Al | 18 | 30.9839 | -14,950.7 | --- | 644.0 ms | 5/2+ | β⁻→31Si(100%) β⁻n→30Si(<1.6%) | 1971 |
| 32Al | 19 | 31.9881 | -11,099.0 | --- | 32.6 ms | 1+ | β⁻→32Si(99.3%) β⁻n→31Si(0.7%) | 1971 |
| 32mAl | 19 | 31.9891 | -10,142.0 | --- | 200.0 ns | (4+) | γ→32Al(100%) | 1996 |
| 33Al | 20 | 32.9909 | -8,497.0 | --- | 41.46 ms | 5/2+ | β⁻→33Si(91.5%) β⁻n→32Si(8.5%) | 1971 |
| 34Al | 21 | 33.9968 | -2,997.6 | --- | 53.73 ms | 4- | β⁻→34Si(74%) β⁻n→33Si(26%) β⁻n→32Si | 1977 |
| 34mAl | 21 | 33.9968 | -2,951.1 | --- | 22.1 ms | 1+ | β⁻→34Si(89%) β⁻n→33Si(11%) β⁻n→32Si | 2012 |
| 35Al | 22 | 34.9998 | -224.0 | --- | 38.16 ms | (5/2+) | β⁻→35Si(64.2%) β⁻n→34Si(35.8%) β⁻n→33Si | 1979 |
| 36Al | 23 | 36.0064 | 5,950.0 | --- | 90.0 ms | --- | β⁻→36Si(100%) β⁻n→35Si(<31%) β⁻n→34Si | 1979 |
| 37Al | 24 | 37.0105 | 9,810.0 | --- | 11.4 ms | (5/2+) | β⁻n→36Si(52%) β⁻→37Si(48%) β⁻n→35Si(>1%) | 1979 |
| 38Al | 25 | 38.0177 | 16,470.0 | --- | 9.0 ms | (0-) | β⁻n→37Si(84%) β⁻→38Si(16%) β⁻n→36Si | 1989 |
| 39Al | 26 | 39.0231 | 21,490.0 | --- | 7.6 ms | (5/2+) | β⁻n→38Si(97%) β⁻→39Si(3%) β⁻n→37Si | 1989 |
| 40Al | 27 | 40.0309 | 28,820.0 | --- | 10.0 ms | --- | β⁻→40Si β⁻n→39Si β⁻n→38Si | 1996 |
| 41Al | 28 | 41.0371 | 34,590.0 | --- | 6.0 ms | (5/2+) | β⁻→41Si β⁻n→40Si β⁻n→39Si | 1997 |
| 42Al | 29 | 42.0451 | 41,990.0 | --- | 3.0 ms | --- | β⁻→42Si β⁻n→41Si β⁻n→40Si | 2007 |
| 43Al | 30 | 43.0518 | 48,270.0 | --- | 4.0 ms | (5/2+) | β⁻→43Si β⁻n→42Si β⁻n→41Si | 2007 |