アンチモンの同位体
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) |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 103Sb | 51 | 52 | 102.93969(32)# | 100# ms [>1.5 µs] | 5/2+# |  |  |
| 104Sb | 51 | 53 | 103.93647(39)# | 0.47(13) s [0.44(+15-11) s] |  |  |  |
| 105Sb | 51 | 54 | 104.93149(11) | 1.12(16) s | (5/2+) |  |  |
| 106Sb | 51 | 55 | 105.92879(34)# | 0.6(2) s | (4+) |  |  |
| 106mSb | 1000(500)# keV | 1000(500)# keV | 1000(500)# keV | 220(20) ns |  |  |  |
| 107Sb | 51 | 56 | 106.92415(32)# | 4.0(2) s | 5/2+# |  |  |
| 108Sb | 51 | 57 | 107.92216(22)# | 7.4(3) s | (4+) |  |  |
| 109Sb | 51 | 58 | 108.918132(20) | 17.3(5) s | 5/2+# |  |  |
| 110Sb | 51 | 59 | 109.91675(22)# | 23.0(4) s | (4+) |  |  |
| 111Sb | 51 | 60 | 110.91316(3) | 75(1) s | (5/2+) |  |  |
| 112Sb | 51 | 61 | 111.912398(19) | 51.4(10) s | 3+ |  |  |
| 113Sb | 51 | 62 | 112.909372(19) | 6.67(7) min | 5/2+ |  |  |
| 114Sb | 51 | 63 | 113.90927(3) | 3.49(3) min | (3+) |  |  |
| 114mSb | 495.5(7) keV | 495.5(7) keV | 495.5(7) keV | 219(12) µs | (8-) |  |  |
| 115Sb | 51 | 64 | 114.906598(17) | 32.1(3) min | 5/2+ |  |  |
| 116Sb | 51 | 65 | 115.906794(6) | 15.8(8) min | 3+ |  |  |
| 116m1Sb | 93.99(5) keV | 93.99(5) keV | 93.99(5) keV | 194(4) ns | 1+ |  |  |
| 116m2Sb | 380(40) keV | 380(40) keV | 380(40) keV | 60.3(6) min | 8- |  |  |
| 117Sb | 51 | 66 | 116.904836(10) | 2.80(1) h | 5/2+ |  |  |
| 118Sb | 51 | 67 | 117.905529(4) | 3.6(1) min | 1+ |  |  |
| 118m1Sb | 50.814(21) keV | 50.814(21) keV | 50.814(21) keV | 20.6(6) µs | (3)+ |  |  |
| 118m2Sb | 250(6) keV | 250(6) keV | 250(6) keV | 5.00(2) h | 8- |  |  |
| 119Sb | 51 | 68 | 118.903942(9) | 38.19(22) h | 5/2+ |  |  |
| 119m1Sb | 2553.6(3) keV | 2553.6(3) keV | 2553.6(3) keV | 130(3) ns | (19/2-) |  |  |
| 119m2Sb | 2852(7) keV | 2852(7) keV | 2852(7) keV | 850(90) ms | 27/2+# |  |  |
| 120Sb | 51 | 69 | 119.905072(8) | 15.89(4) min | 1+ |  |  |
| 120m1Sb | 0(100)# keV | 0(100)# keV | 0(100)# keV | 5.76(2) d | 8- |  |  |
| 120m2Sb | 78.16(5) keV | 78.16(5) keV | 78.16(5) keV | 246(2) ns | (3+) |  |  |
| 120m3Sb | 2328.3(6) keV | 2328.3(6) keV | 2328.3(6) keV | 400(8) ns | (6) |  |  |
| 121Sb | 51 | 70 | 120.9038157(24) | 安定同位体 | 5/2+ | 0.5721(5) |  |
| 122Sb | 51 | 71 | 121.9051737(24) | 2.7238(2) d | 2- |  |  |
| 122m1Sb | 61.4131(5) keV | 61.4131(5) keV | 61.4131(5) keV | 1.86(8) µs | 3+ |  |  |
| 122m2Sb | 137.4726(8) keV | 137.4726(8) keV | 137.4726(8) keV | 0.53(3) ms | (5)+ |  |  |
| 122m3Sb | 163.5591(17) keV | 163.5591(17) keV | 163.5591(17) keV | 4.191(3) min | (8)- |  |  |
| 123Sb | 51 | 72 | 122.9042140(22) | 安定同位体 | 7/2+ | 0.4279(5) |  |
| 124Sb | 51 | 73 | 123.9059357(22) | 60.20(3) d | 3- |  |  |
| 124m1Sb | 10.8627(8) keV | 10.8627(8) keV | 10.8627(8) keV | 93(5) s | 5+ |  |  |
| 124m2Sb | 36.8440(14) keV | 36.8440(14) keV | 36.8440(14) keV | 20.2(2) min | (8)- |  |  |
| 124m3Sb | 40.8038(7) keV | 40.8038(7) keV | 40.8038(7) keV | 3.2(3) µs | (3+,4+) |  |  |
| 125Sb | 51 | 74 | 124.9052538(28) | 2.75856(25) a | 7/2+ |  |  |
| 126Sb | 51 | 75 | 125.90725(3) | 12.35(6) d | (8-) |  |  |
| 126m1Sb | 17.7(3) keV | 17.7(3) keV | 17.7(3) keV | 19.15(8) min | (5+) |  |  |
| 126m2Sb | 40.4(3) keV | 40.4(3) keV | 40.4(3) keV | ~11 s | (3-) |  |  |
| 126m3Sb | 104.6(3) keV | 104.6(3) keV | 104.6(3) keV | 553(5) ns | (3+) |  |  |
| 127Sb | 51 | 76 | 126.906924(6) | 3.85(5) d | 7/2+ |  |  |
| 128Sb | 51 | 77 | 127.909169(27) | 9.01(4) h | 8- |  |  |
| 128mSb | 10(7) keV | 10(7) keV | 10(7) keV | 10.4(2) min | 5+ |  |  |
| 129Sb | 51 | 78 | 128.909148(23) | 4.40(1) h | 7/2+ |  |  |
| 129m1Sb | 1851.05(10) keV | 1851.05(10) keV | 1851.05(10) keV | 17.7(1) min | (19/2-) |  |  |
| 129m2Sb | 1860.90(10) keV | 1860.90(10) keV | 1860.90(10) keV | >2 µs | (15/2-) |  |  |
| 129m3Sb | 2138.9(5) keV | 2138.9(5) keV | 2138.9(5) keV | 1.1(1) µs | (23/2+) |  |  |
| 130Sb | 51 | 79 | 129.911656(18) | 39.5(8) min | (8-)# |  |  |
| 130mSb | 4.80(20) keV | 4.80(20) keV | 4.80(20) keV | 6.3(2) min | (4,5)+ |  |  |
| 131Sb | 51 | 80 | 130.911982(22) | 23.03(4) min | (7/2+) |  |  |
| 132Sb | 51 | 81 | 131.914467(15) | 2.79(5) min | (4+) |  |  |
| 132m1Sb | 200(30) keV | 200(30) keV | 200(30) keV | 4.15(5) min | (8-) |  |  |
| 132m2Sb | 254.5(3) keV | 254.5(3) keV | 254.5(3) keV | 102(4) ns | (6-) |  |  |
| 133Sb | 51 | 82 | 132.915252(27) | 2.5(1) min | (7/2+) |  |  |
| 134Sb | 51 | 83 | 133.92038(5) | 0.78(6) s | (0-) |  |  |
| 134mSb | 80(110) keV | 80(110) keV | 80(110) keV | 10.07(5) s | (7-) |  |  |
| 135Sb | 51 | 84 | 134.92517(11) | 1.68(2) s | (7/2+) |  |  |
| 136Sb | 51 | 85 | 135.93035(32)# | 0.923(14) s | 1-# |  |  |
| 136mSb | 173(3) keV | 173(3) keV | 173(3) keV | 570(50) ns | 6-# |  |  |
| 137Sb | 51 | 86 | 136.93531(43)# | 450(50) ms | 7/2+# |  |  |
| 138Sb | 51 | 87 | 137.94079(32)# | 500# ms [>300 ns] | 2-# |  |  |
| 139Sb | 51 | 88 | 138.94598(54)# | 300# ms [>300 ns] | 7/2+# |  |  |