臭素の同位体
一覧

| 同位体核種 | Z(p)> 励起エネルギー | N(n)> 励起エネルギー | 同位体質量 (u)> 励起エネルギー | 半減期 | 核スピン数 | 天然存在比 | 天然存在比 (範囲) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 67Br | 35 | 32 | 66.96479(54)# |  | 1/2-# |  |  |
| 68Br | 35 | 33 | 67.95852(38)# | <1.2 µs | 3+# |  |  |
| 69Br | 35 | 34 | 68.95011(11)# | <24 ns | 1/2-# |  |  |
| 70Br | 35 | 35 | 69.94479(33)# | 79.1(8) ms | 0+# |  |  |
| 70mBr | 2292.2(8) keV | 2292.2(8) keV | 2292.2(8) keV | 2.2(2) s | (9+) |  |  |
| 71Br | 35 | 36 | 70.93874(61) | 21.4(6) s | (5/2)- |  |  |
| 72Br | 35 | 37 | 71.93664(6) | 78.6(24) s | 1+ |  |  |
| 72mBr | 100.92(3) keV | 100.92(3) keV | 100.92(3) keV | 10.6(3) s | 1- |  |  |
| 73Br | 35 | 38 | 72.93169(5) | 3.4(2) min | 1/2- |  |  |
| 74Br | 35 | 39 | 73.929891(16) | 25.4(3) min | (0-) |  |  |
| 74mBr | 13.58(21) keV | 13.58(21) keV | 13.58(21) keV | 46(2) min | 4(+#) |  |  |
| 75Br | 35 | 40 | 74.925776(15) | 96.7(13) min | 3/2- |  |  |
| 76Br | 35 | 41 | 75.924541(10) | 16.2(2) h | 1- |  |  |
| 76mBr | 102.58(3) keV | 102.58(3) keV | 102.58(3) keV | 1.31(2) s | (4)+ |  |  |
| 77Br | 35 | 42 | 76.921379(3) | 57.036(6) h | 3/2- |  |  |
| 77mBr | 105.86(8) keV | 105.86(8) keV | 105.86(8) keV | 4.28(10) min | 9/2+ |  |  |
| 78Br | 35 | 43 | 77.921146(4) | 6.46(4) min | 1+ |  |  |
| 78mBr | 180.82(13) keV | 180.82(13) keV | 180.82(13) keV | 119.2(10) µs | (4+) |  |  |
| 79Br | 35 | 44 | 78.9183371(22) | STABLE | 3/2- | 0.5069(7) |  |
| 79mBr | 207.61(9) keV | 207.61(9) keV | 207.61(9) keV | 4.86(4) s | (9/2+) |  |  |
| 80Br | 35 | 45 | 79.9185293(22) | 17.68(2) min | 1+ |  |  |
| 80mBr | 85.843(4) keV | 85.843(4) keV | 85.843(4) keV | 4.4205(8) h | 5- |  |  |
| 81Br | 35 | 46 | 80.9162906(21) | STABLE | 3/2- | 0.4931(7) |  |
| 81mBr | 536.20(9) keV | 536.20(9) keV | 536.20(9) keV | 34.6(28) µs | 9/2+ |  |  |
| 82Br | 35 | 47 | 81.9168041(21) | 35.282(7) h | 5- |  |  |
| 82mBr | 45.9492(10) keV | 45.9492(10) keV | 45.9492(10) keV | 6.13(5) min | 2- |  |  |
| 83Br | 35 | 48 | 82.915180(5) | 2.40(2) h | 3/2- |  |  |
| 83mBr | 3068.8(6) keV | 3068.8(6) keV | 3068.8(6) keV | 700(100) ns | (19/2-) |  |  |
| 84Br | 35 | 49 | 83.916479(16) | 31.80(8) min | 2- |  |  |
| 84m1Br | 320(10) keV | 320(10) keV | 320(10) keV | 6.0(2) min | 6- |  |  |
| 84m2Br | 408.2(4) keV | 408.2(4) keV | 408.2(4) keV | <140 ns | 1+ |  |  |
| 85Br | 35 | 50 | 84.915608(21) | 2.90(6) min | 3/2- |  |  |
| 86Br | 35 | 51 | 85.918798(12) | 55.1(4) s | (2-) |  |  |
| 87Br | 35 | 52 | 86.920711(19) | 55.65(13) s | 3/2- |  |  |
| 88Br | 35 | 53 | 87.92407(4) | 16.29(6) s | (2-) |  |  |
| 88mBr | 272.7(3) keV | 272.7(3) keV | 272.7(3) keV | 5.4(7) µs |  |  |  |
| 89Br | 35 | 54 | 88.92639(6) | 4.40(3) s | (3/2-,5/2-) |  |  |
| 90Br | 35 | 55 | 89.93063(8) | 1.91(1) s |  |  |  |
| 91Br | 35 | 56 | 90.93397(8) | 541(5) ms | 3/2-# |  |  |
| 92Br | 35 | 57 | 91.93926(5) | 0.343(15) s | (2-) |  |  |
| 93Br | 35 | 58 | 92.94305(32)# | 102(10) ms | 3/2-# |  |  |
| 94Br | 35 | 59 | 93.94868(43)# | 70(20) ms |  |  |  |
| 95Br | 35 | 60 | 94.95287(54)# | 50# ms [>300 ns] | 3/2-# |  |  |
| 96Br | 35 | 61 | 95.95853(75)# | 20# ms [>300 ns] |  |  |  |
| 97Br | 35 | 62 | 96.96280(86)# | 10# ms [>300 ns] | 3/2-# |  |  |