Table
| nuclide symbol |
Z(p) | N(n) | isotopic mass (u) |
half-life | decay mode(s) |
daughter isotope(s) |
nuclear spin |
representative isotopic composition (mole fraction) |
range of natural variation (mole fraction) |
|---|---|---|---|---|---|---|---|---|---|
| excitation energy | |||||||||
| 124Nd | 60 | 64 | 123.95223(64)# | 500# ms | 0+ | ||||
| 125Nd | 60 | 65 | 124.94888(43)# | 600(150) ms | 5/2(+#) | ||||
| 126Nd | 60 | 66 | 125.94322(43)# | 1# s | β+ | 126Pr | 0+ | ||
| 127Nd | 60 | 67 | 126.94050(43)# | 1.8(4) s | β+ | 127Pr | 5/2+# | ||
| β+, p (rare) | 126Ce | ||||||||
| 128Nd | 60 | 68 | 127.93539(21)# | 5# s | β+ | 128Pr | 0+ | ||
| β+, p (rare) | 127Ce | ||||||||
| 129Nd | 60 | 69 | 128.93319(22)# | 4.9(2) s | β+ | 129Pr | 5/2+# | ||
| β+, p (rare) | 128Ce | ||||||||
| 130Nd | 60 | 70 | 129.92851(3) | 21(3) s | β+ | 130Pr | 0+ | ||
| 131Nd | 60 | 71 | 130.92725(3) | 33(3) s | β+ | 131Pr | (5/2)(+#) | ||
| β+, p (rare) | 130Ce | ||||||||
| 132Nd | 60 | 72 | 131.923321(26) | 1.56(10) min | β+ | 132Pr | 0+ | ||
| 133Nd | 60 | 73 | 132.92235(5) | 70(10) s | β+ | 133Pr | (7/2+) | ||
| 133m1Nd | 127.97(11) keV | ~70 s | β+ | 133Pr | (1/2)+ | ||||
| 133m2Nd | 176.10(10) keV | ~300 ns | (9/2-) | ||||||
| 134Nd | 60 | 74 | 133.918790(13) | 8.5(15) min | β+ | 134Pr | 0+ | ||
| 134mNd | 2293.1(4) keV | 410(30) µs | (8)- | ||||||
| 135Nd | 60 | 75 | 134.918181(21) | 12.4(6) min | β+ | 135Pr | 9/2(-) | ||
| 135mNd | 65.0(2) keV | 5.5(5) min | β+ | 135Pr | (1/2+) | ||||
| 136Nd | 60 | 76 | 135.914976(13) | 50.65(33) min | β+ | 136Pr | 0+ | ||
| 137Nd | 60 | 77 | 136.914567(12) | 38.5(15) min | β+ | 137Pr | 1/2+ | ||
| 137mNd | 519.43(17) keV | 1.60(15) s | IT | 137Nd | (11/2-) | ||||
| 138Nd | 60 | 78 | 137.911950(13) | 5.04(9) h | β+ | 138Pr | 0+ | ||
| 138mNd | 3174.9(4) keV | 410(50) ns | (10+) | ||||||
| 139Nd | 60 | 79 | 138.911978(28) | 29.7(5) min | β+ | 139Pr | 3/2+ | ||
| 139m1Nd | 231.15(5) keV | 5.50(20) h | β+ (88.2%) | 139Pr | 11/2- | ||||
| IT (11.8%) | 139Nd | ||||||||
| 139m2Nd | 2570.9+X keV | >=141 ns | |||||||
| 140Nd | 60 | 80 | 139.90955(3) | 3.37(2) d | EC | 140Pr | 0+ | ||
| 140mNd | 2221.4(1) keV | 600(50) µs | 7- | ||||||
| 141Nd | 60 | 81 | 140.909610(4) | 2.49(3) h | β+ | 141Pr | 3/2+ | ||
| 141mNd | 756.51(5) keV | 62.0(8) s | IT (99.95%) | 141Nd | 11/2- | ||||
| β+ (.05%) | 141Pr | ||||||||
| 142Nd | 60 | 82 | 141.9077233(25) | Stable | 0+ | 0.272(5) | 0.2680-0.2730 | ||
| 143Nd | 60 | 83 | 142.9098143(25) | Observationally Stable | 7/2- | 0.122(2) | 0.1212-0.1232 | ||
| 144Nd | 60 | 84 | 143.9100873(25) | 2.29(16)×1015 a | α | 140Ce | 0+ | 0.238(3) | 0.2379-0.2397 |
| 145Nd | 60 | 85 | 144.9125736(25) | Observationally Stable | 7/2- | 0.083(1) | 0.0823-0.0835 | ||
| 146Nd | 60 | 86 | 145.9131169(25) | Observationally Stable | 0+ | 0.172(3) | 0.1706-0.1735 | ||
| 147Nd | 60 | 87 | 146.9161004(25) | 10.98(1) d | β- | 147Pm | 5/2- | ||
| 148Nd | 60 | 88 | 147.916893(3) | Observationally Stable | 0+ | 0.057(1) | 0.0566-0.0578 | ||
| 149Nd | 60 | 89 | 148.920149(3) | 1.728(1) h | β- | 148Pm | 5/2- | ||
| 150Nd | 60 | 90 | 149.920891(3) | 6.7(7)×1018 a | β-β- | 150Sm | 0+ | 0.056(2) | 0.0553-0.0569 |
| 151Nd | 60 | 91 | 150.923829(3) | 12.44(7) min | β- | 151Pm | 3/2+ | ||
| 152Nd | 60 | 92 | 151.924682(26) | 11.4(2) min | β- | 152Pm | 0+ | ||
| 153Nd | 60 | 93 | 152.927698(29) | 31.6(10) s | β- | 153Pm | (3/2)- | ||
| 154Nd | 60 | 94 | 153.92948(12) | 25.9(2) s | β- | 154Pm | 0+ | ||
| 154m1Nd | 480(150)# keV | 1.3(5) µs | |||||||
| 154m2Nd | 1349(10) keV | >1 µs | (5-) | ||||||
| 155Nd | 60 | 95 | 154.93293(16)# | 8.9(2) s | β- | 155Pm | 3/2-# | ||
| 156Nd | 60 | 96 | 155.93502(22) | 5.49(7) s | β- | 156Pm | 0+ | ||
| 156mNd | 1432(5) keV | 135 ns | 5- | ||||||
| 157Nd | 60 | 97 | 156.93903(21)# | 2# s | β- | 157Pm | 5/2-# | ||
| 158Nd | 60 | 98 | 157.94160(43)# | 700# ms | β- | 158Pm | 0+ | ||
| 159Nd | 60 | 99 | 158.94609(54)# | 500# ms | β- | 159Pm | 7/2+# | ||
| 160Nd | 60 | 100 | 159.94909(64)# | 300# ms | β- | 160Pm | 0+ | ||
| 161Nd | 60 | 101 | 160.95388(75)# | 200# ms | β- | 161Pm | 1/2-# | ||
Read more about this topic: Isotopes Of Neodymium
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