鎝的同位素
圖表

| 符號 | Z> 激發能量 | N> 激發能量 | 同位素質量（u） > 激發能量 | 半衰期 | 衰變方式 | 衰變產物 | 原子核 自旋 | 相對豐度 （莫耳分率） |
| --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 85Tc | 43 | 42 | 84.94883(43)# | <110 ns | β+ | 85Mo | 1/2-# |  |
| 85Tc | 43 | 42 | 84.94883(43)# | <110 ns | p | 84Mo | 1/2-# |  |
| 85Tc | 43 | 42 | 84.94883(43)# | <110 ns | β+, p | 84Nb | 1/2-# |  |
| 86Tc | 43 | 43 | 85.94288(32)# | 55(6) ms | β+ | 86Mo | (0+) |  |
| 86mTc | 1500(150) keV | 1500(150) keV | 1500(150) keV | 1.11(21) µs |  |  | (5+,5-) |  |
| 87Tc | 43 | 44 | 86.93653(32)# | 2.18(16) s | β+ | 87Mo | 1/2-# |  |
| 87mTc | 20(60)# keV | 20(60)# keV | 20(60)# keV | 2# s |  |  | 9/2+# |  |
| 88Tc | 43 | 45 | 87.93268(22)# | 5.8(2) s | β+ | 88Mo | (2,3) |  |
| 88mTc | 0(300)# keV | 0(300)# keV | 0(300)# keV | 6.4(8) s | β+ | 88Mo | (6,7,8) |  |
| 89Tc | 43 | 46 | 88.92717(22)# | 12.8(9) s | β+ | 89Mo | (9/2+) |  |
| 89mTc | 62.6(5) keV | 62.6(5) keV | 62.6(5) keV | 12.9(8) s | β+ | 89Mo | (1/2-) |  |
| 90Tc | 43 | 47 | 89.92356(26) | 8.7(2) s | β+ | 90Mo | 1+ |  |
| 90mTc | 310(390) keV | 310(390) keV | 310(390) keV | 49.2(4) s | β+ | 90Mo | (8+) |  |
| 91Tc | 43 | 48 | 90.91843(22) | 3.14(2) min | β+ | 91Mo | (9/2)+ |  |
| 91mTc | 139.3(3) keV | 139.3(3) keV | 139.3(3) keV | 3.3(1) min | β+ (99%) | 91Mo | (1/2)- |  |
| 91mTc | 139.3(3) keV | 139.3(3) keV | 139.3(3) keV | 3.3(1) min | IT (1%) | 91Tc | (1/2)- |  |
| 92Tc | 43 | 49 | 91.915260(28) | 4.25(15) min | β+ | 92Mo | (8)+ |  |
| 92mTc | 270.15(11) keV | 270.15(11) keV | 270.15(11) keV | 1.03(7) µs |  |  | (4+) |  |
| 93Tc | 43 | 50 | 92.910249(4) | 2.75(5) h | β+ | 93Mo | 9/2+ |  |
| 93m1Tc | 391.84(8) keV | 391.84(8) keV | 391.84(8) keV | 43.5(10) min | IT (76.6%) | 93Tc | 1/2- |  |
| 93m1Tc | 391.84(8) keV | 391.84(8) keV | 391.84(8) keV | 43.5(10) min | β+ (23.4%) | 93Mo | 1/2- |  |
| 93m2Tc | 2185.16(15) keV | 2185.16(15) keV | 2185.16(15) keV | 10.2(3) µs |  |  | (17/2)- |  |
| 94Tc | 43 | 51 | 93.909657(5) | 293(1) min | β+ | 94Mo | 7+ |  |
| 94mTc | 75.5(19) keV | 75.5(19) keV | 75.5(19) keV | 52.0(10) min | β+ (99.9%) | 94Mo | (2)+ |  |
| 94mTc | 75.5(19) keV | 75.5(19) keV | 75.5(19) keV | 52.0(10) min | IT (.1%) | 94Tc | (2)+ |  |
| 95Tc | 43 | 52 | 94.907657(6) | 20.0(1) h | β+ | 95Mo | 9/2+ |  |
| 95mTc | 38.89(5) keV | 38.89(5) keV | 38.89(5) keV | 61(2) d | β+ (96.12%) | 95Mo | 1/2- |  |
| 95mTc | 38.89(5) keV | 38.89(5) keV | 38.89(5) keV | 61(2) d | IT (3.88%) | 95Tc | 1/2- |  |
| 96Tc | 43 | 53 | 95.907871(6) | 4.28(7) d | β+ | 96Mo | 7+ |  |
| 96mTc | 34.28(7) keV | 34.28(7) keV | 34.28(7) keV | 51.5(10) min | IT (98%) | 96Tc | 4+ |  |
| 96mTc | 34.28(7) keV | 34.28(7) keV | 34.28(7) keV | 51.5(10) min | β+ (2%) | 96Mo | 4+ |  |
| 97Tc | 43 | 54 | 96.906365(5) | 4.21×106 a | ε | 97Mo | 9/2+ |  |
| 97mTc | 96.56(6) keV | 96.56(6) keV | 96.56(6) keV | 91.4(8) d | IT (99.66%) | 97Tc | 1/2- |  |
| 97mTc | 96.56(6) keV | 96.56(6) keV | 96.56(6) keV | 91.4(8) d | ε (.34%) | 97Mo | 1/2- |  |
| 98 Tc  | 43 | 55 | 97.907216(4) | 4.2(3)×106 a | β− | 98Ru | (6)+ |  |
| 98m Tc  | 90.76(16) keV | 90.76(16) keV | 90.76(16) keV | 14.7(3) µs |  |  | (2)- |  |
| 99Tc（英语：） | 43 | 56 | 98.9062547(21) | 2.111(12)×105 a | β− | 99Ru | 9/2+ | 痕量 |
| 99mTc | 142.6832(11) keV | 142.6832(11) keV | 142.6832(11) keV | 6.0058(12) h | IT (99.99%) | 99Tc | 1/2- |  |
| 99mTc | 142.6832(11) keV | 142.6832(11) keV | 142.6832(11) keV | 6.0058(12) h | β− (.0037%) | 99Ru | 1/2- |  |
| 100Tc | 43 | 57 | 99.9076578(24) | 15.8(1) s | β− (99.99%) | 100Ru | 1+ |  |
| 100Tc | 43 | 57 | 99.9076578(24) | 15.8(1) s | ε (.0018%) | 100Mo | 1+ |  |
| 100m1Tc | 200.67(4) keV | 200.67(4) keV | 200.67(4) keV | 8.32(14) µs |  |  | (4)+ |  |
| 100m2Tc | 243.96(4) keV | 243.96(4) keV | 243.96(4) keV | 3.2(2) µs |  |  | (6)+ |  |
| 101Tc | 43 | 58 | 100.907315(26) | 14.22(1) min | β− | 101Ru | 9/2+ |  |
| 101mTc | 207.53(4) keV | 207.53(4) keV | 207.53(4) keV | 636(8) µs |  |  | 1/2- |  |
| 102Tc | 43 | 59 | 101.909215(10) | 5.28(15) s | β− | 102Ru | 1+ |  |
| 102mTc | 20(10) keV | 20(10) keV | 20(10) keV | 4.35(7) min | β− (98%) | 102Ru | (4,5) |  |
| 102mTc | 20(10) keV | 20(10) keV | 20(10) keV | 4.35(7) min | IT (2%) | 102Tc | (4,5) |  |
| 103Tc | 43 | 60 | 102.909181(11) | 54.2(8) s | β− | 103Ru | 5/2+ |  |
| 104Tc | 43 | 61 | 103.91145(5) | 18.3(3) min | β− | 104Ru | (3+)# |  |
| 104m1Tc | 69.7(2) keV | 69.7(2) keV | 69.7(2) keV | 3.5(3) µs |  |  | 2(+) |  |
| 104m2Tc | 106.1(3) keV | 106.1(3) keV | 106.1(3) keV | 0.40(2) µs |  |  | (+) |  |
| 105Tc | 43 | 62 | 104.91166(6) | 7.6(1) min | β− | 105Ru | (3/2-) |  |
| 106Tc | 43 | 63 | 105.914358(14) | 35.6(6) s | β− | 106Ru | (1,2) |  |
| 107Tc | 43 | 64 | 106.91508(16) | 21.2(2) s | β− | 107Ru | (3/2-) |  |
| 107mTc | 65.7(10) keV | 65.7(10) keV | 65.7(10) keV | 184(3) ns |  |  | (5/2-) |  |
| 108Tc | 43 | 65 | 107.91846(14) | 5.17(7) s | β− | 108Ru | (2)+ |  |
| 109Tc | 43 | 66 | 108.91998(10) | 860(40) ms | β− (99.92%) | 109Ru | 3/2-# |  |
| 109Tc | 43 | 66 | 108.91998(10) | 860(40) ms | β−, n (.08%) | 108Ru | 3/2-# |  |
| 110Tc | 43 | 67 | 109.92382(8) | 0.92(3) s | β− (99.96%) | 110Ru | (2+) |  |
| 110Tc | 43 | 67 | 109.92382(8) | 0.92(3) s | β−, n (.04%) | 109Ru | (2+) |  |
| 111Tc | 43 | 68 | 110.92569(12) | 290(20) ms | β− (99.15%) | 111Ru | 3/2-# |  |
| 111Tc | 43 | 68 | 110.92569(12) | 290(20) ms | β−, n (.85%) | 110Ru | 3/2-# |  |
| 112Tc | 43 | 69 | 111.92915(13) | 290(20) ms | β− (97.4%) | 112Ru | 2+# |  |
| 112Tc | 43 | 69 | 111.92915(13) | 290(20) ms | β−, n (2.6%) | 111Ru | 2+# |  |
| 113Tc | 43 | 70 | 112.93159(32)# | 170(20) ms | β− | 113Ru | 3/2-# |  |
| 114Tc | 43 | 71 | 113.93588(64)# | 150(30) ms | β− | 114Ru | 2+# |  |
| 115Tc | 43 | 72 | 114.93869(75)# | 100# ms [>300 ns] | β− | 115Ru | 3/2-# |  |
| 116Tc | 43 | 73 | 115.94337(75)# | 90# ms [>300 ns] |  |  | 2+# |  |
| 117Tc | 43 | 74 | 116.94648(75)# | 40# ms [>300 ns] |  |  | 3/2-# |  |
| 118Tc | 43 | 75 | 117.95148(97)# | 30# ms [>300 ns] |  |  | 2+# |  |
1 2 3 4  畫上#號的數據代表沒有經過實驗的証明，僅為理論推測。
1 2 3  用括號括起來的數據代表不確定性。
↑  穩定的衰變產物以粗體表示。
↑  半衰期超过5亿年的衰变产物以粗斜体表示。
↑  Long-lived fission product
↑  Used in medicine
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