鎘的同位素
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） | 相對豐度 的變化量 （莫耳分率） |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| 95Cd | 48 | 47 | 94.94987(64)# | 5# ms |  |  | 9/2+# |  |  |
| 96Cd | 48 | 48 | 95.93977(54)# | 1# s | β+ | 96Ag | 0+ |  |  |
| 97Cd | 48 | 49 | 96.93494(43)# | 2.8(6) s | β+ (>99.9%) | 97Ag | 9/2+# |  |  |
| 97Cd | 48 | 49 | 96.93494(43)# | 2.8(6) s | β+, p (<.1%) | 96Pd | 9/2+# |  |  |
| 98Cd | 48 | 50 | 97.92740(8) | 9.2(3) s | β+ (99.975%) | 98Ag | 0+ |  |  |
| 98Cd | 48 | 50 | 97.92740(8) | 9.2(3) s | β+, p (.025%) | 97Ag | 0+ |  |  |
| 98mCd | 2427.5(6) keV | 2427.5(6) keV | 2427.5(6) keV | 190(20) ns |  |  | 8+# |  |  |
| 99Cd | 48 | 51 | 98.92501(22)# | 16(3) s | β+ (99.78%) | 99Ag | (5/2+) |  |  |
| 99Cd | 48 | 51 | 98.92501(22)# | 16(3) s | β+, p (.21%) | 98Pd | (5/2+) |  |  |
| 99Cd | 48 | 51 | 98.92501(22)# | 16(3) s | β+, α (10−4%) | 94Rh | (5/2+) |  |  |
| 100Cd | 48 | 52 | 99.92029(10) | 49.1(5) s | β+ | 100Ag | 0+ |  |  |
| 101Cd | 48 | 53 | 100.91868(16) | 1.36(5) min | β+ | 101Ag | (5/2+) |  |  |
| 102Cd | 48 | 54 | 101.91446(3) | 5.5(5) min | β+ | 102Ag | 0+ |  |  |
| 103Cd | 48 | 55 | 102.913419(17) | 7.3(1) min | β+ | 103Ag | 5/2+ |  |  |
| 104Cd | 48 | 56 | 103.909849(10) | 57.7(10) min | β+ | 104Ag | 0+ |  |  |
| 105Cd | 48 | 57 | 104.909468(12) | 55.5(4) min | β+ | 105Ag | 5/2+ |  |  |
| 106Cd | 48 | 58 | 105.906459(6) | 觀測上穩定 | 觀測上穩定 | 觀測上穩定 | 0+ | 0.0125(6) |  |
| 107Cd | 48 | 59 | 106.906618(6) | 6.50(2) h | β+ | 107mAg | 5/2+ |  |  |
| 108Cd | 48 | 60 | 107.904184(6) | 觀測上穩定 | 觀測上穩定 | 觀測上穩定 | 0+ | 0.0089(3) |  |
| 109Cd | 48 | 61 | 108.904982(4) | 461.4(12) d | ε | 109Ag | 5/2+ |  |  |
| 109m1Cd | 59.6(4) keV | 59.6(4) keV | 59.6(4) keV | 12(2) µs |  |  | 1/2+ |  |  |
| 109m2Cd | 463.0(5) keV | 463.0(5) keV | 463.0(5) keV | 10.9(5) µs |  |  | 11/2- |  |  |
| 110Cd | 48 | 62 | 109.9030021(29) | 稳定 | 稳定 | 稳定 | 0+ | 0.1249(18) |  |
| 111Cd | 48 | 63 | 110.9041781(29) | 稳定 | 稳定 | 稳定 | 1/2+ | 0.1280(12) |  |
| 111mCd | 396.214(21) keV | 396.214(21) keV | 396.214(21) keV | 48.50(9) min | IT | 111Cd | 11/2- |  |  |
| 112Cd | 48 | 64 | 111.9027578(29) | 稳定 | 稳定 | 稳定 | 0+ | 0.2413(21) |  |
| 113Cd | 48 | 65 | 112.9044017(29) | 8.04(5)×1015 a | β− | 113In | 1/2+ | 0.1222(12) |  |
| 113mCd | 263.54(3) keV | 263.54(3) keV | 263.54(3) keV | 14.1(5) a | β− (99.86%) | 113In | 11/2- |  |  |
| 113mCd | 263.54(3) keV | 263.54(3) keV | 263.54(3) keV | 14.1(5) a | IT (.139%) | 113Cd | 11/2- |  |  |
| 114Cd | 48 | 66 | 113.9033585(29) | 觀測上穩定 | 觀測上穩定 | 觀測上穩定 | 0+ | 0.2873(42) |  |
| 115Cd | 48 | 67 | 114.9054310(29) | 53.46(5) h | β− | 115mIn | 1/2+ |  |  |
| 115mCd | 181.0(5) keV | 181.0(5) keV | 181.0(5) keV | 44.56(24) d | β− | 115mIn | (11/2)- |  |  |
| 116Cd | 48 | 68 | 115.904756(3) | 3.1(4)×1019 a | β−β− | 116Sn | 0+ | 0.0749(18) |  |
| 117Cd | 48 | 69 | 116.907219(4) | 2.49(4) h | β− | 117mIn | 1/2+ |  |  |
| 117mCd | 136.4(2) keV | 136.4(2) keV | 136.4(2) keV | 3.36(5) h | β− | 117mIn | (11/2)- |  |  |
| 118Cd | 48 | 70 | 117.906915(22) | 50.3(2) min | β− | 118In | 0+ |  |  |
| 119Cd | 48 | 71 | 118.90992(9) | 2.69(2) min | β− | 119mIn | (3/2+) |  |  |
| 119mCd | 146.54(11) keV | 146.54(11) keV | 146.54(11) keV | 2.20(2) min | β− | 119mIn | (11/2-)# |  |  |
| 120Cd | 48 | 72 | 119.90985(2) | 50.80(21) s | β− | 120In | 0+ |  |  |
| 121Cd | 48 | 73 | 120.91298(9) | 13.5(3) s | β− | 121mIn | (3/2+) |  |  |
| 121mCd | 214.86(15) keV | 214.86(15) keV | 214.86(15) keV | 8.3(8) s | β− | 121mIn | (11/2-) |  |  |
| 122Cd | 48 | 74 | 121.91333(5) | 5.24(3) s | β− | 122In | 0+ |  |  |
| 123Cd | 48 | 75 | 122.91700(4) | 2.10(2) s | β− | 123mIn | (3/2)+ |  |  |
| 123mCd | 316.52(23) keV | 316.52(23) keV | 316.52(23) keV | 1.82(3) s | β− | 123In | (11/2-) |  |  |
| 123mCd | 316.52(23) keV | 316.52(23) keV | 316.52(23) keV | 1.82(3) s | IT | 23Cd | (11/2-) |  |  |
| 124Cd | 48 | 76 | 123.91765(7) | 1.25(2) s | β− | 124In | 0+ |  |  |
| 125Cd | 48 | 77 | 124.92125(7) | 0.65(2) s | β− | 125mIn | (3/2+)# |  |  |
| 125mCd | 50(70) keV | 50(70) keV | 50(70) keV | 570(90) ms | β− | 125In | 11/2-# |  |  |
| 126Cd | 48 | 78 | 125.92235(6) | 0.515(17) s | β− | 126In | 0+ |  |  |
| 127Cd | 48 | 79 | 126.92644(8) | 0.37(7) s | β− | 127mIn | (3/2+) |  |  |
| 128Cd | 48 | 80 | 127.92776(32) | 0.28(4) s | β− | 128In | 0+ |  |  |
| 129Cd | 48 | 81 | 128.93215(32)# | 242(8) ms | β− (>99.9%) | 129In | 3/2+# |  |  |
| 129Cd | 48 | 81 | 128.93215(32)# | 242(8) ms | IT (<.1%) | 129Cd | 3/2+# |  |  |
| 129mCd | 0(200)# keV | 0(200)# keV | 0(200)# keV | 104(6) ms |  |  | 11/2-# |  |  |
| 130Cd | 48 | 82 | 129.9339(3) | 162(7) ms | β− (96%) | 130In | 0+ |  |  |
| 130Cd | 48 | 82 | 129.9339(3) | 162(7) ms | β−, n (4%) | 129In | 0+ |  |  |
| 131Cd | 48 | 83 | 130.94067(32)# | 68(3) ms |  |  | 7/2-# |  |  |
| 132Cd | 48 | 84 | 131.94555(54)# | 97(10) ms |  |  | 0+ |  |  |
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 4  用括號括起來的數據代表不確定性。
↑  半衰期超过5亿年的同位素以粗體表示。
↑  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。
↑  被认为会双β衰变成106Pd，半衰期超过4.1×1020年
↑  被认为会双β衰变成108Pd，半衰期超过4.1×1017年
1 2 3 4 5 6 7  裂变产物
1 2  原始（英语：）放射性同位素
↑  被认为会双β衰变成114Sn，半衰期超过6.4×1018年
| 0 | 1 | 2 |
| --- | --- | --- |

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