Br
Bromine
Z 35 79.904 g/molHalogen
| 79Br | 44 | 78.9183 | -76,068.1 | 50.65% | Stable | 3/2- | --- | 1920 |
| 81Br | 46 | 80.9163 | -77,977.1 | 49.35% | Stable | 3/2- | --- | 1920 |
| 65Br | 30 | 64.9823 | -16,490.0 | --- | --- | (5/2-) | p→64Se | --- |
| 66Br | 31 | 65.9747 | -23,570.0 | --- | --- | (0+) | p→65Se | --- |
| 67Br | 32 | 66.9651 | -32,530.0 | --- | --- | (1/2-) | p→66Se | --- |
| 68Br | 33 | 67.9584 | -38,790.0 | --- | --- | (3+) | p→67Se | 1995 |
| 69Br | 34 | 68.9503 | -46,260.0 | --- | --- | (5/2-) | p→68Se(100%) | 1988 |
| 69mBr | 34 | 68.9504 | -46,220.0 | --- | --- | (5/2-) | --- | --- |
| 69nBr | 34 | 68.9509 | -45,690.0 | --- | --- | (9/2+) | --- | --- |
| 70Br | 35 | 69.9448 | -51,426.0 | --- | 78.8 ms | 0+ | β⁺→70Se(100%) β⁺p→69As | 1978 |
| 70mBr | 35 | 69.9473 | -49,134.0 | --- | 2.16 s | 9+ | β⁺→70Se(100%) β⁺p→69As | 1981 |
| 71Br | 36 | 70.9393 | -56,502.0 | --- | 21.4 s | (5/2-) | β⁺→71Se(100%) | 1981 |
| 72Br | 37 | 71.9366 | -59,061.8 | --- | 1.31 m | 1+ | β⁺→72Se(100%) | 1970 |
| 72mBr | 37 | 71.9367 | -58,961.0 | --- | 10.6 s | (3-) | γ→72Br(100%) β⁺→72Se | 1980 |
| 73Br | 38 | 72.9317 | -63,646.0 | --- | 3.4 m | 1/2- | β⁺→73Se(100%) | 1970 |
| 74Br | 39 | 73.9299 | -65,288.0 | --- | 25.4 m | (0-) | β⁺→74Se(100%) | 1952 |
| 74mBr | 39 | 73.9299 | -65,274.0 | --- | 46.0 m | 4+ | β⁺→74Se(100%) | 1953 |
| 75Br | 40 | 74.9258 | -69,107.0 | --- | 1.61 h | 3/2- | β⁺→75Se(100%) | 1948 |
| 76Br | 41 | 75.9245 | -70,289.0 | --- | 16.2 h | 1- | β⁺→76Se(100%) | 1952 |
| 76mBr | 41 | 75.9247 | -70,186.0 | --- | 1.31 s | (4+) | γ→76Br(~100%) β⁺→76Se(<0.6%) | 1979 |
| 77Br | 42 | 76.9214 | -73,234.8 | --- | 2.38 d | 3/2- | β⁺→77Se(100%) | 1948 |
| 77mBr | 42 | 76.9215 | -73,128.9 | --- | 4.28 m | 9/2+ | γ→77Br(100%) | 1961 |
| 78Br | 43 | 77.9211 | -73,452.0 | --- | 6.45 m | 1+ | β⁺→78Se(~100%) β⁻→78Kr(<0.01%) | 1937 |
| 78mBr | 43 | 77.9213 | -73,271.0 | --- | 119.4 µs | (4+) | γ→78Br(100%) | 1958 |
| 79mBr | 44 | 78.9186 | -75,860.5 | --- | 4.85 s | 9/2+ | γ→79Br(100%) | 1954 |
| 80Br | 45 | 79.9185 | -75,889.0 | --- | 17.68 m | 1+ | β⁻→80Kr(91.7%) β⁺→80Se(8.3%) | 1937 |
| 80mBr | 45 | 79.9186 | -75,803.2 | --- | 4.42 h | 5- | γ→80Br(100%) | 1937 |
| 81mBr | 46 | 80.9169 | -77,440.9 | --- | 34.6 µs | 9/2+ | γ→81Br(100%) | 1967 |
| 82Br | 47 | 81.9168 | -77,498.7 | --- | 1.47 d | 5- | β⁻→82Kr(100%) | 1937 |
| 82mBr | 47 | 81.9169 | -77,452.8 | --- | 6.13 m | 2- | γ→82Br(97.6%) β⁻→82Kr(2.4%) | 1965 |
| 83Br | 48 | 82.9152 | -79,014.0 | --- | 2.37 h | 3/2- | β⁻→83Kr(100%) | 1937 |
| 83mBr | 48 | 82.9185 | -75,945.0 | --- | 729.0 ns | (19/2-) | γ→83Br(100%) | 1989 |
| 84Br | 49 | 83.9165 | -77,783.0 | --- | 31.76 m | 2- | β⁻→84Kr(100%) | 1943 |
| 84mBr | 49 | 83.9168 | -77,470.0 | --- | 6.0 m | (6-) | β⁻→84Kr(100%) | 1957 |
| 84nBr | 49 | 83.9169 | -77,375.0 | --- | --- | 1+ | γ→84Br(100%) | 1970 |
| 85Br | 50 | 84.9156 | -78,575.0 | --- | 2.9 m | 3/2- | β⁻→85Kr(100%) | 1943 |
| 86Br | 51 | 85.9188 | -75,632.0 | --- | 55.1 s | (1-) | β⁻→86Kr(100%) | 1962 |
| 87Br | 52 | 86.9207 | -73,892.0 | --- | 55.68 s | 5/2- | β⁻→87Kr(97.4%) β⁻n→86Kr(2.6%) | 1943 |
| 88Br | 53 | 87.9241 | -70,716.0 | --- | 16.34 s | (1-) | β⁻→88Kr(93.42%) β⁻n→87Kr(6.58%) | 1948 |
| 88mBr | 53 | 87.9244 | -70,446.0 | --- | 5.51 µs | (4-) | γ→88Br(100%) | 1970 |
| 89Br | 54 | 88.9267 | -68,274.0 | --- | 4.36 s | (3/2-) | β⁻→89Kr(86.2%) β⁻n→88Kr(13.8%) | 1959 |
| 90Br | 55 | 89.9313 | -64,000.0 | --- | 1.91 s | --- | β⁻→90Kr(74.7%) β⁻n→89Kr(25.3%) | 1959 |
| 91Br | 56 | 90.9344 | -61,107.0 | --- | 543.0 ms | (5/2-) | β⁻→91Kr(70.5%) β⁻n→90Kr(29.5%) | 1974 |
| 92Br | 57 | 91.9396 | -56,233.0 | --- | 314.0 ms | (2-) | β⁻→92Kr(66.9%) β⁻n→91Kr(33.1%) β⁻n→90Kr | 1974 |
| 92mBr | 57 | 91.9403 | -55,571.0 | --- | 88.0 ns | --- | γ→92Br(100%) | 2012 |
| 92nBr | 57 | 91.9409 | -55,095.0 | --- | 85.0 ns | --- | γ→92Br(100%) | 2012 |
| 93Br | 58 | 92.9432 | -52,890.0 | --- | 152.0 ms | (5/2-) | β⁻n→92Kr(64%) β⁻→93Kr(36%) β⁻n→91Kr | 1981 |
| 94Br | 59 | 93.9488 | -47,650.0 | --- | 70.0 ms | (2-) | β⁻n→93Kr(68%) β⁻→94Kr(32%) β⁻n→92Kr | 1981 |
| 94mBr | 59 | 93.9492 | -47,360.0 | --- | 530.0 ns | --- | γ→94Br(100%) | 2012 |
| 95Br | 60 | 94.9529 | -43,850.0 | --- | 80.0 ms | (5/2-) | β⁻→95Kr β⁻n→94Kr β⁻n→93Kr | 1997 |
| 95mBr | 60 | 94.9535 | -43,310.0 | --- | 6.8 µs | --- | γ→95Br(100%) | 2012 |
| 96Br | 61 | 95.959 | -38,210.0 | --- | 20.0 ms | --- | β⁻→96Kr β⁻n→95Kr β⁻n→94Kr | 1997 |
| 96mBr | 61 | 95.9593 | -37,900.0 | --- | 3.0 µs | --- | γ→96Br(100%) | 2012 |
| 97Br | 62 | 96.9635 | -34,000.0 | --- | 40.0 ms | (5/2-) | β⁻→97Kr β⁻n→96Kr β⁻n→95Kr | 1997 |
| 98Br | 63 | 97.9699 | -28,050.0 | --- | 15.0 ms | --- | β⁻→98Kr β⁻n→97Kr β⁻n→96Kr | 2010 |