釹（原子質量單位 144242 3）的同位素，其中有 1 個穩定同位素和 4 個觀測上穩定同位素。 圖表 124Nd styletextalignright 60 styletextalignright 64 12395223 64 500 ms 0 125Nd styletextalignright 60 styletextalignright 65 12494888 43 600 150 ms 52 126Nd styletextalignright 60 styletextalignright 66 12594322 43 1 s 200 ns 126Pr 0 rowspan2127Nd rowspan2 styletextalignright 60 rowspan2 styletextalignright 67 rowspan212694050 43 rowspan218 4 s 127Pr rowspan252 rowspan2 rowspan2 （不常見） 126Ce rowspan2128Nd rowspan2 styletextalignright 60 rowspan2 styletextalignright 68 rowspan212793539 21 rowspan25 s 128Pr rowspan20 rowspan2 rowspan2 （不常見） 127Ce rowspan2129Nd rowspan2 styletextalignright 60 rowspan2 styletextalignright 69 rowspan212893319 22 rowspan249 2 s 129Pr rowspan252 rowspan2 rowspan2 （不常見） 128Ce 130Nd styletextalignright 60 styletextalignright 70 12992851 3 21 3 s 130Pr 0 rowspan2131Nd rowspan2 styletextalignright 60 rowspan2 styletextalignright 71 rowspan213092725 3 rowspan233 3 s 131Pr rowspan252 rowspan2 rowspan2 （不常見） 130Ce 132Nd styletextalignright 60 styletextalignright 72 131923321 26 156 10 min 132Pr 0 133Nd styletextalignright 60 styletextalignright 73 13292235 5 70 10 s 133Pr 72 styletextindent1em 133m1Nd colspan3 styletextindent2em 12797 11 keV 70 s 133Pr 12 styletextindent1em 133m2Nd colspan3 styletextindent2em 17610 10 keV 300 ns 92 134Nd styletextalignright 60 styletextalignright 74 133918790 13 85 15 min 134Pr 0 styletextindent1em 134mNd colspan3 styletextindent2em 22931 4 keV 410 30 µs 8 135Nd styletextalignright 60 styletextalignright 75 134918181 21 124 6 min 135Pr 92 styletextindent1em 135mNd colspan3 styletextindent2em 650 2 keV 55 5 min 135Pr 12 136Nd styletextalignright 60 styletextalignright 76 135914976 13 5065 33 min 136Pr 0 137Nd styletextalignright 60 styletextalignright 77 136914567 12 385 15 min 137Pr 12 styletextindent1em 137mNd colspan3 styletextindent2em 51943 17 keV 160 15 s IT 137Nd 112 138Nd styletextalignright 60 styletextalignright 78 137911950 13 504 9 h 138Pr 0 styletextindent1em 138mNd colspan3 styletextindent2em 31749 4 keV 410 50 ns 10 139Nd styletextalignright 60 styletextalignright 79 138911978 28 297 5 min 139Pr 32 rowspan2 styletextindent1em 139m1Nd rowspan2 colspan3 styletextindent2em 23115 5 keV rowspan2550 20 h 882 139Pr rowspan2112 rowspan2 rowspan2 IT 118 139Nd styletextindent1em 139m2Nd colspan3 styletextindent2em 25709X keV 141 ns 140Nd styletextalignright 60 styletextalignright 80 13990955 3 337 2 d 140Pr 0 styletextindent1em 140mNd colspan3 styletextindent2em 22214 1 keV 600 50 µs 7 141Nd styletextalignright 60 styletextalignright 81 140909610 4 249 3 h 141Pr 32 rowspan2 styletextindent1em 141mNd rowspan2 colspan3 styletextindent2em 75651 5 keV rowspan2620 8 s IT 9995 141Nd rowspan2112 rowspan2 rowspan2 05 141Pr 142Nd styletextalignright 60 styletextalignright 82 1419077233 25 colspan3 aligncenter 0 0272 5 0268002730 143Nd 裂變產物用於 styletextalignright 60 styletextalignright 83 1429098143 25 colspan3 aligncenter 觀測上穩定被認為會 α 衰變成 139Ce 72 0122 2 0121201232 144Nd 放射性同位素 styletextalignright 60 styletextalignright 84 1439100873 25 229 161015 a α 140Ce 0 0238 3 0237902397 145Nd styletextalignright 60 styletextalignright 85 1449125736 25 colspan3 aligncenter 觀測上穩定被認為會 α 衰變成 141Ce，半衰期超過 61016 年 72 0083 1 0082300835 146Nd styletextalignright 60 styletextalignright 86 1459131169 25 colspan3 aligncenter 觀測上穩定被認為會 α 衰變成 142Ce 0 0172 3 0170601735 147Nd styletextalignright 60 styletextalignright 87 1469161004 25 1098 1 d 147Pm 52 148Nd styletextalignright 60 styletextalignright 88 147916893 3 colspan3 aligncenter 觀測上穩定被認為會 α 衰變成 144Ce，半衰期超過 301018 年 0 0057 1 0056600578 149Nd styletextalignright 60 styletextalignright 89 148920149 3 1728 1 h 149Pm 52 150Nd styletextalignright 60 styletextalignright 90 149920891 3 67 71018 a 150Sm 0 0056 2 0055300569 151Nd styletextalignright 60 styletextalignright 91 150923829 3 1244 7 min 151Pm 32 152Nd styletextalignright 60 styletextalignright 92 151924682 26 114 2 min 152Pm 0 153Nd styletextalignright 60 styletextalignright 93 152927698 29 316 10 s 153Pm 32 154Nd styletextalignright 60 styletextalignright 94 15392948 12 259 2 s 154Pm 0 styletextindent1em 154m1Nd colspan3 styletextindent2em 480 150 keV 13 5 µs styletextindent1em 154m2Nd colspan3 styletextindent2em 1349 10 keV 1 µs 5 155Nd styletextalignright 60 styletextalignright 95 15493293 16 89 2 s 155Pm 32 156Nd styletextalignright 60 styletextalignright 96 15593502 22 549 7 s 156Pm 0 styletextindent1em 156mNd colspan3 styletextindent2em 1432 5 keV 135 ns 5 157Nd styletextalignright 60 styletextalignright 97 15693903 21 2 s 300 ns 157Pm 52 158Nd styletextalignright 60 styletextalignright 98 15794160 43 700 ms 300 ns 158Pm 0 159Nd styletextalignright 60 styletextalignright 99 15894609 54 500 ms 159Pm 72 160Nd styletextalignright 60 styletextalignright 100 15994909 64 300 ms 160Pm 0 161Nd styletextalignright 60 styletextalignright 101 16095388 75 200 ms 161Pm 12 參考文獻 Isotope masses from Ame2003 Atomic Mass Evaluation by G Audi AH Wapstra C Thibault J Blachot and O Bersillon in Nuclear Physics A729 2003 Isotopic compositions and standard atomic masses from Atomic weights of the elements Review 2000 IUPAC Technical Report Pure Appl Chem Vol 75 No 6 pp 683800 2003 and Atomic Weights Revised 2005 Halflife spin and isomer data selected from these sources Editing notes on this articles talk page Audi Bersillon Blachot Wapstra The Nubase2003 evaluation of nuclear and decay properties Nuc Phys A 729 pp 3128 2003 National Nuclear Data Center Brookhaven National Laboratory Information extracted from the NuDat 21 database retrieved Sept 2005 David R Lide ed Norman E Holden in CRC Handbook of Chemistry and Physics 85th Edition online version CRC Press Boca Raton Florida 2005 Section 11 Table of the Isotopes Nd Category 釹