Na
Sodium
Z 11 22.99 g/molAlkali Metal
| 23Na | 12 | 22.9898 | -9,529.853 | 100.0% | Stable | 3/2+ | --- | 1921 |
| 17Na | 6 | 17.0373 | 34,720.0 | --- | --- | (1/2+) | p→16Ne(100%) | 2017 |
| 18Na | 7 | 18.0269 | 25,040.0 | --- | 1.3 zs | (1-) | p→17Ne | 2004 |
| 19Na | 8 | 19.0139 | 12,929.0 | --- | --- | (5/2+) | p→18Ne(100%) | 1969 |
| 20Na | 9 | 20.0074 | 6,850.5 | --- | 447.9 ms | 2+ | β⁺→20Ne(75%) β⁺α→16O(25%) | 1950 |
| 21Na | 10 | 20.9977 | -2,184.86 | --- | 22.46 s | 3/2+ | β⁺→21Ne(100%) | 1940 |
| 22Na | 11 | 21.9944 | -5,181.39 | --- | 2.6 y | 3+ | β⁺→22Ne(100%) β⁺(90.57%) EC→22Ne(9.43%) | 1935 |
| 22mNa | 11 | 21.9951 | -4,598.34 | --- | 243.0 ns | 1+ | γ→22Na(100%) | 1958 |
| 24Na | 13 | 23.991 | -8,417.901 | --- | 14.96 h | 4+ | β⁻→24Mg(100%) | 1934 |
| 24mNa | 13 | 23.9915 | -7,945.694 | --- | 20.18 ms | 1+ | γ→24Na(~100%) β⁻→24Mg(0.05%) | 1961 |
| 25Na | 14 | 24.99 | -9,357.8 | --- | 59.1 s | 5/2+ | β⁻→25Mg(100%) | 1943 |
| 26Na | 15 | 25.9926 | -6,861.0 | --- | 1.07 s | 3+ | β⁻→26Mg(100%) | 1958 |
| 26mNa | 15 | 25.9927 | -6,779.0 | --- | 4.35 µs | 1+ | γ→26Na(100%) | 1987 |
| 27Na | 16 | 26.9941 | -5,518.0 | --- | 301.0 ms | 5/2+ | β⁻→27Mg(99.902%) β⁻n→26Mg(0.098%) | 1968 |
| 28Na | 17 | 27.9989 | -988.0 | --- | 33.1 ms | 1+ | β⁻→28Mg(99.42%) β⁻n→27Mg(0.58%) | 1969 |
| 29Na | 18 | 29.0029 | 2,680.0 | --- | 43.2 ms | 3/2+ | β⁻→29Mg(78%) β⁻n→28Mg(22%) β⁻n→27Mg | 1969 |
| 30Na | 19 | 30.0091 | 8,475.0 | --- | 45.9 ms | 2+ | β⁻→30Mg(70.16%) β⁻n→29Mg(28.6%) β⁻n→28Mg(1.24%) β⁻α→26Ne(5.5e-5%) | 1969 |
| 31Na | 20 | 31.0131 | 12,246.0 | --- | 16.8 ms | 3/2+ | β⁻→31Mg(63.27%) β⁻n→30Mg(36%) β⁻n→29Mg(0.73%) β⁻n→28Mg(<0.05%) | 1969 |
| 32Na | 21 | 32.02 | 18,640.0 | --- | 12.9 ms | (3-) | β⁻→32Mg(66.4%) β⁻n→31Mg(26%) β⁻n→30Mg(7.6%) | 1972 |
| 33Na | 22 | 33.0255 | 23,780.0 | --- | 8.2 ms | (3/2+) | β⁻n→32Mg(47%) β⁻→33Mg(40%) β⁻n→31Mg(13%) | 1972 |
| 34Na | 23 | 34.034 | 31,680.0 | --- | 5.5 ms | 1+ | β⁻n→32Mg(50%) β⁻→34Mg(35%) β⁻n→33Mg(15%) | 1983 |
| 35Na | 24 | 35.0406 | 37,830.0 | --- | 1.5 ms | (3/2+) | β⁻→35Mg(100%) β⁻n→34Mg β⁻n→33Mg | 1983 |
| 36Na | 25 | 36.0493 | 45,900.0 | --- | --- | --- | n→35Na | --- |
| 37Na | 26 | 37.057 | 53,130.0 | --- | 1.0 ms | (3/2+) | β⁻→37Mg β⁻n→36Mg β⁻n→35Mg | 2002 |
| 38Na | 27 | 38.0665 | 61,910.0 | --- | --- | --- | n→37Na | --- |
| 39Na | 28 | 39.0751 | 69,980.0 | --- | 1.0 ms | (3/2+) | β⁻→39Mg β⁻n→38Mg β⁻n→37Mg | 2019 |