Liste der Isotope ist die Übersichtsseite, um komfortabel auf alle Elemente zugreifen zu können. Dort wird auch der Aufbau erklärt und die Legende zur Tabelle ist auch dort zu finden. Zerfallsenergien wurden mit den angegebenen Massen und dem Masse-Energie-Äquivalent von neu berechnet.Datenquelle

61 Promethium Iso­top Halbwerts­zeit Zerfallsenergie(MeV) Spin /Parität Zerfallsart(en)(%) Masse(u)128Pm 1,0 s -9,120 (β−), 2,940 (α), 12,530 ε (5, 6, 7) ε=100 127,949129Pm 2,4 s -10,850 (β-), 2,465 (α), 9,195 (ε), -22,192 (β− n) (5/2-) β+ = 100 128,943130Pm 2,6 s -7,890 (β−), 2,500 (α), 11,200 (ε), -21,470 (β− n) 4, 5, 6 β+ = 100, p = ? 129,941131Pm 6,3 s -9,530 (β−), 2,460 (α), 8,110 (ε), -20,220 (β− n) 11/2- εβ+ = 100 130,936132Pm 6,2 s -6,550 (β−), 9,800 (ε), -19,570 (β− n) (3+) β+ ≈ 100, p ≈ 5·10−5 131,934133Pm 13,5 s -8,180 (β−), 1,940 (α), 6,920 (ε), -18,400 (β− n) 3/2+ β+=100 132,930133m1Pm 8,8 s 11/2− β+ ≈ 100, IT = ? 132,930134m1Pm 5 s -5,360 (β−), 2,010 (α), 8,910 (ε), -17,580 (β− n) (2+) εβ+=100 133,928134m2Pm 22 s (5+) εβ+=100135m1Pm 49 s -7,190 (β−), 1,820 (α), 6,160 (ε), -16,750 (β− n) (3/2+, 5/2+) εβ+=100 134,925135m2Pm 45 s (11/2−) εβ+=100136m1Pm 300 s -4,360(β−), 1,630 (α), 8,030 (ε), -16,380 (β− n) (2) εβ+=100 135,924136m2Pm 107 s (5-) εβ+=100 135,924137Pm 2,4 min -6,050 (β−), 1,440 (α), 5,512 (ε), -15,333 (β− n) 11/2− εβ+=100 136,920138Pm 10 s -3,440 (β−), 1,160 (α), 7,080 (ε), -14,990 (β− n) (1+) εβ+=100 137,920138m1Pm 3,24 min (5−) εβ+=100139Pm 4,15 min -5,120 (β−), 1,010 (α), 4510 (ε), -14,074 (β− n) (5/2)+ εβ+ =100 138,917139m1Pm 180 ms (11/2)− IT≈100 εβ+<0.05140Pm 9,2 s -2,758(β−), 0,720 (α), 6,540 (ε), -13,905 (β− n) (1+) εβ+=100 139,916140mPm 5,95 min 7− εβ+140m1Pm 5,95 min 8− εβ+ 139,916141Pm 20,90 min 3,715 5/2+ εβ+ 140,914142Pm 40,5 s 4,870 1+ εβ+ 141,913142m1Pm 2,0 ms (8)− IT 141,913143Pm 265 d 1,041 5/2+ εβ+ 142,911144Pm 363 d 2,332 5− εβ+ 143,913144m1Pm 780 ns (9)+ 143,913145Pm 17,7 a 0,163 (ε), 2,332 (α) 5/2+ ε = 100, α = 2,8·10−7 144,913146Pm 5,53 a 1,472 (ε), 1,542 (β−) 3− ε = 66,0, β− = 34,0 145,915147Pm 2,6 a 0,224 7/2+ β− 146,915148Pm 5,368 d 2,468 1− β− 147,917148m1Pm 41,29 d 2,606 (β−), 0,138 (IT) 6− β− = 95,0 , IT = 5,0 147,917149Pm 53,08 h 1,071 7/2+ β− 148,918150Pm 2,698 h 3,454 (1−) β− 149,921151Pm 28,40 h 1,187 5/2+ β− 150,921152Pm 4,12 min 3,50 1+ β− 151,924152m1Pm 7,52 min 3,56 4− β− 151,924152m2Pm 13,8 min (8) β− < 100, IT > 0 151,924153Pm 5,25 min 1,90 5/2− β− 152,924154Pm 1,73 min 4,05 (0, 1) β− 153,927154m1Pm 2,68 min 4,05 (3, 4) β− 153,927155Pm 41,5 s 3,17 (5/2−) β− 154,928156Pm 26,70 s 5,16 4(−) β− 155,931157Pm 10,56 s 4,5 (5/2−) β− 156,933158Pm 4,8 s 6, 2 β− 157,937159Pm 1,5 s 1,47 β− 158,939160Pm 725 ms β− 159,943161Pm 1,05 s β− 160,946162Pm 0,63 s β− 161,951163Pm 0,43 s (5/2-) β− 162,954

62 Samarium Iso­top Halbwerts­zeit Zerfallsenergie(MeV) Spin /Parität Zerfallsart(en)(%) NH(%) Masse(u)129Sm 0,55 s (1/2+,3/2+) εβ+ ≈ 100 128,955131Sm 1,2 s εβ+ ≈ 100, εp = ?132Sm 4,0 s 0+ εβ+ ≈ 100, εp = ?133Sm 2,89 s (5/2+) εβ+ ≈ 100, εp = ?134Sm 9,5 s 5,4 0+ εβ+135Sm 10,3 s 7,2 (εβ+), 5,5 (εp) (7/2+) εβ+ ≈ 100, εp = 0,02136Sm 47 s 4,5 0+ εβ+137Sm 45 s 6,1 (9/2−) εβ+138Sm 3,1 min 3,9 0+ εβ+139Sm 2,57 min 5,46 (1/2)+ εβ+139m1Sm 10,7 s (11/2)− IT = 93,7, εβ+ = 6,3140Sm 14,82 min 3,02 0+ εβ+141Sm 10,2 min 4,543 1/2+ εβ+141m1Sm 22,6 min 4,719 (εβ+), 0,176 (IT) 11/2− εβ+ = 99,69, IT = 0,31142Sm 72,49 min 2,090 0+ εβ+143Sm 8,75 min 3,443 3/2+ εβ+143m1Sm 66 s 0,754 (IT), 4,197 (εβ+) 11/2− IT = 99,76, εβ+ = 0,24143m2Sm 30 ms 2,795 23/2(−) IT144Sm stabil 0+ 3,1145Sm 340 d 0617 7/2− ε146Sm a 2,529 0+ α147Sm a 2,310 7/2− α 15,0148Sm a 1,986 0+ α 11,3149Sm 7/2− α 13,8150Sm stabil 0+ 7,04151Sm 90 a 0,077 5/2− β−152Sm stabil 0+ 26,7153Sm 46,284 h 0,808 3/2+ β−153m1Sm 10,6 ms 11/2− IT154Sm stabil 0+ 22,7155Sm 22,3 min 1,627 3/2− β−156Sm 9,4 h 0,722 0+ β−157Sm 8,03 min 2,730 (3/2−) β−158Sm 5,30 min 1,999 0+ β−159Sm 11,37 s 3,8 (5/2−) β−160Sm 9,6 s 3,0 0+ β−161Sm 4,8 s β−162Sm 2,4 s β−163Sm >160 ns β−164Sm >160 ns β−165Sm >160 ns β−

63 Europium Iso­top Halbwerts­zeit Zerfallsenergie(MeV) Spin /Parität Zerfallsart(en)(%) NH(%) Masse(u)130Eu 0,9 ms (1+) p ≈ 100 129,964131Eu 17,8 ms p 130,958134Eu 0,5 s -8,272 (β−), >3,244 (α), 11,450(ε), -21,81(β−n) εβ+ ≈ 100, εp > 0 133,946135Eu 1,5 s -9,898 (β−), 3,198(α), 8,709(ε), -20,689(β−n) εβ+ ≈ 100, εp = ? 134,942136Eu 3,3 s 10,4 (εβ+), 6,5 (εp), -7,159 (β−), 2,960(α), 10,570(ε), -20,065(β−n) (7+) εβ+ ≈ 100, εp = 0,09 135,939136m1Eu 3,8 s (3+) εβ+ ≈ 100, εp = 0,09 135,939137Eu 11 s 7,5 (11/2-) εβ+ 136,935138Eu 12,1 s 9,2 (6−) εβ+ 137,933139Eu 17,9 s 6,7 (11/2)− εβ+ 138,930140Eu 1,51 s 8,4 1+ εβ+ 139,928140m1Eu 125 ms 8,585 (εβ+), 0,185 (IT) (5−) IT = 100, εβ+ < 1 139,928141Eu 40,7 s 5,550 5/2+ εβ+ 140,925141m1Eu 2,7 s 5,646 (εβ+), 0,096 (IT) 11/2− εβ+ = 13, IT = 87142Eu 2,34 s 7,640 1+ εβ+142m1Eu 1,22 min 7,640 8− εβ+143Eu 2,63 min 5,275 5/2+ εβ+144Eu 10,2 s 6,315 1+ εβ+145Eu 5,93 d 2,660 5/2+ εβ+146Eu 4,61 d 3,878 4− εβ+ 145,917147Eu 24,1 d 1,722 (εβ+), 2,990 (α) 5/2+ εβ+ ≈ 100, α = 0,0022 146,917148Eu 54,5 d 3,107 (εβ+), 2,761 (α) 5− εβ+ ≈ 100, α = 9,4·10−7 147,918149Eu 93,1 d 0,692 5/2+ ε 148,918150Eu 36 a 329 d 2,261 5(−) εβ+ 149,920150m1Eu 12,8 h 2,303 (εβ+), 1,013 (β−), 0,042 (IT) 0− εβ+ = 11, β− = 89 , IT < 5·10−8 149,920151Eu > 1,7·1018 a 5/2+ α = ? 47,8 150,920152Eu 13,537 a 1,874 (εβ+), 1,819 (β−) 3− ε = 72,1 , β− = 27,9 151,922152m1Eu 9,31 h 1,920 (εβ+), 1,865 (β−) 0− εβ+ = 28 , β− = 72 151,922152m2Eu 96 min 0,148 8− IT 151,922153Eu stabil 5/2+ 52,2 152,921154Eu 8,6 a 1,969 (β−), 0,717 (εβ+) 3− β− ≈ 100, εβ+ = 0,02 153,923154m1Eu 46,3 min 0,145 (8−) IT 153,923155Eu 4,753 a 0,252 5/2+ β− 154,923156Eu 15,19 d 2,451 0+ β− 155,925157Eu 15,18 h 1,363 5/2+ β− 156,925158Eu 45,9 min 3,490 (1−) β− 157,928159Eu 18,1 min 2,514 5/2+ β− 158,929160Eu 38 s 4,58 1(−) β− 159,932161Eu 26 s 3,7 β− 160,934162Eu 10,6 s 5,6 β− 161,937163Eu 7,7 s β− 162,939164Eu 4,15 s β− 163,943165Eu 2,3 s β− 164,946166Eu 1,7 s β− 165,950167Eu 0,86 s (5/2+) β− 166,953168Eu 0,20 s (6-) β− 167,958

64 Gadolinium Iso­top Halbwerts­zeit Zerfallsenergie(MeV) Spin /Parität Zerfallsart(en)(%) NH(%) Masse(u)135Gd 1,1 s (5/2+) εβ+ 134,952136Gd >200 ns 0+ εβ+ 135,947137Gd 2,2 s (7/2) εβ+ 136,945138Gd 4,7 s 0+ εβ+ 137,940139Gd 4,9 s 7,7 (εβ+), 6,3 (β+p) 9/2− εβ+ = ?, β+p = ?140Gd 15,8 s 5,5 0+ εβ+141Gd 14 s 7,2 (εβ+), 4,9 (εp) (1/2+) εβ+ ≈ 100, εp = 0,03141m1Gd 24,5 s 7,578 (εβ+), 0,378 (IT) (11/2−) εβ+ = 89, IT = 11142Gd 70,2 s 4,5 0+ εβ+143Gd 39 s 6,01 (1/2)+ εβ+ ≈ 100, εp < 0,001143m1Gd 112 s 6,163 (11/2−) εβ+144Gd 4,5 min 3,74 0+ εβ+145Gd 23,0 min 5,05 1/2+ εβ+145m1Gd 85 s 0,749 (IT), 5,799 (εβ+) 11/2− IT = 94,3 , εβ+ = 5,7146Gd 48,27 d 1,030 0+ ε147Gd 38,06 h 2,187 7/2− εβ+148Gd 74,6 a 3,271 0+ α149Gd 9,28 d 1,314 (εβ+), 3,100 (α) 7/2− εβ+ ≈ 100, α = 4,3·10−4150Gd 1,79·106 a 2,809 0+ α151Gd 124 d 0,464 (ε), 2,653 (α) 7/2− ε ≈ 100, α ≈ 8·10−7152Gd 1,08·1014 a 2,205 0+ α 0,20153Gd 240,4 d 0,485 3/2− ε154Gd stabil 0+ 2,18155Gd stabil 3/2− 14,80155m1Gd 31,97 ms 0,121 11/2− IT156Gd stabil SF 0+ 20,47157Gdstabil 3/2− 15,65158Gd stabil 0+ 24,84159Gd 18,479 h 0,971 3/2− β−160Gd stabil 0+ 2β = ? 21,86161Gd 3,66 min 1,956 5/2− β−162Gd 8,4 min 1,39 0+ β−163Gd 68 s 3,1 (5/2−) β−164Gd 45 s 2,3 0+ β−165Gd 10,3 s β− 164,939

65 Terbium Iso­top Halbwerts­zeit Zerfallsenergie(MeV) Spin /Parität Zerfallsart(en)(%) NH(%) Masse(u)140Tb 2,4 s 10,8 (εβ+), −0,3 (p), 7,3 (εp) 5 εβ+ ≈ 100, p, εp = 0,26141Tb 3,5 s 8,3 (5/2−) εβ+141m1Tb 7,9 s 8,3 εβ+142Tb 597 ms 10,1 (εβ+), 6,0 (εp) 1+ εβ+ ≈ 100, εp = 0,0022142m1Tb 303 ms 0,28 (IT), 10,38 (εβ+), 6,28 (εp) (5−) IT = 100, εβ+ < 0,5143Tb 12 s 7,4 (11/2−) εβ+143m1Tb 21 s 0,0 (5/2+)144Tb 1 s 8,9 (1+) εβ+144m1Tb 4,25 s 0,397 (IT), 9,297 (εβ+) (6−) IT = 66, εβ+ = 34145Tb 6,51 (1/2+)145m1Tb 29,5 s 6,70 (εβ+) (11/2−) εβ+146Tb 8 s 8,08 1+ εβ+146m1Tb 23 s 8,08 5− εβ+146m2Tb 1,18 ms 0,78 (10+) IT147Tb 1,7 h 4,609 (1/2+) εβ+147m1Tb 1,83 min 4,660 (11/2)− εβ+148Tb 60 min 5,69 2− εβ+148m1Tb 2,20 min 5,78 9+ εβ+149Tb 4,118 h 3,636 (εβ+), 4,113 (α) 1/2+ εβ+ = 83,3 , α = 16,7149m1Tb 4,16 min 3,672 (εβ+), 4,077 (α) 11/2− εβ+ = 99,978 , α = 0,022150Tb 3,48 h 4,656 (εβ+), 3,587 (α) (2−) εβ+ ≈ 100, α < 0,05150m1Tb 5,8 min 5,130 9+ εβ+151Tb 17,609 h 2,565 (εβ+), 3,497 (α) 1/2(+) εβ+ ≈ 100, α = 9,5·10−3151m1Tb 25 s 0,099 (IT), 2,664 (εβ+) (11/2−) IT = 93,8, εβ+ = 6,2152Tb 17,5 h 3,990 (εβ+), 3,090 (α) 2− εβ+ ≈ 100, α < 7·10−7152m1Tb 4,2 min 0,502 (IT), 4,492 (εβ+) 8+ IT = 78,8, εβ+ = 21,2153Tb 2,34 d 1,57 5/2+ εβ+154Tb 21,5 h 3,56 (εβ+), 0,25 (β−) 0 εβ+ ≈ 100, β− < 0,1154m1Tb 9,4 h 3,56 (εβ+), 0,0 (IT), 0,25 (β−) 3− εβ+ = 78,2, IT = 21,8, β− < 0,1154m2Tb 22,7 h 3,56 (εβ+), 0,0 (IT) 7− εβ+ = 98,2, IT = 1,8154m3Tb 513 ns155Tb 5,32 d 0,821 3/2+ ε156Tb 5,35 d 2,444 (εβ+), 0,434 (β−) 3− εβ+ ≈ 100, β− = ?156m1Tb 24,4 h 0,05 (7−) IT156m2Tb 5,3 h 0,088 (IT), 2,532 (εβ+) (0+) IT = ?, εβ+ = ?157Tb 71 a 0,060 3/2+ ε158Tb 180 a 1,220 (εβ+), 0,937 (β−) 3− εβ+ = 83,4, β− = 16,6158m1Tb 10,70 s 0,110 (IT), 1,047 (β−), 1,330 (εβ+) 0− IT = 100, β− < 0,6, εβ+ < 0,01158m2Tb 0,4 ms 0,388 (IT) 7− IT159Tb stabil 3/2+ 100160Tb 72,3 d 1,835 3− β−161Tb 6,88 d 0,593 3/2+ β−162Tb 7,60 min 2,510 1− β−163Tb 19,5 min 1,785 3/2+ β−164Tb 3,0 min 3,89 (5+) β−165Tb 2,11 min 3,0 (3/2+) β−

66 Dysprosium Iso­top Halbwerts­zeit Zerfallsenergie(MeV) Spin /Parität Zerfallsart(en)(%) NH(%) Masse(u)141Dy 0,9 s 9,3 (εβ+), 8,8 (εp) (9/2−) εβ+ ≈ 100, εp = ?142Dy 2,3 s 6,9 (εβ+), 5,7 (εp) 0+ εβ+ ≈ 100, εp = 0,06143Dy 4,1 s 8,8 (εβ+), 7,6 (εp) (1/2+) εβ+ ≈ 100, εp = ?144Dy 9,1 s 6,2 (εβ+), 4,1 (εp) 0+ εβ+ ≈ 100, εp = ?145Dy 10 s 7,72 (1/2+) εβ+145m1Dy 13,6 s 7,72 (11/2−) εβ+146Dy 29 s 5,16 0+ εβ+146m1Dy 150 ms 2,936 (10+) IT147Dy 40 s 6,37 (εβ+), 4,43 (εp) 1/2+ εβ+ ≈ 100, εp = ?147m1Dy 55 s 7,121 (εβ+), 0,751 (IT) 11/2− εβ+ = 65, IT = 35148Dy 3,1 min 2,678 0+ εβ+149Dy 4,20 min 3,812 (7/2−) εβ+149m1Dy 490 ms 2,661 (IT), 6,473 (εβ+) (27/2−) IT = 99,3, εβ+ = 0,7150Dy 7,17 min 4,351 (α), 1,794 (εβ+) 0+ α = 36, εβ+ = 64151Dy 17,9 min 2,87 (εβ+), 4,180 (α) 7/2(−) εβ+ = 94,4, α = 5,6152Dy 2,38 h 0,60 (εβ+), 3,727 (α) 0+ ε(?) = 99,900, α = 0,100153Dy 6,4 h 2,17 (εβ+), 3,559 (α) 7/2(−) εβ+ ≈ 100, α = 0,0094154Dy 3,0·106 a 2,947 0+ α155Dy 9,9 h 2,095 3/2− εβ+155m1Dy 6 µs 0,234 11/2− IT156Dy stabil α,2ε 0+ 0,06157Dy 8,14 h 1,341 3/2− εβ+157m1Dy 21,6 ms 0,199 11/2− IT158Dy stabil 0+ 0,10159Dy 144,4 d 0,366 3/2− ε160Dy stabil 0+ 2,34161Dy stabil 5/2+ 18,9162Dy stabil 0+ 25,5163Dy stabil 5/2− 24,9164Dy stabil 0+ 28,2165Dy 2,334 h 1,286 7/2+ β−165m1Dy 1,257 min 0,108 (IT), 1,394 (β−) 1/2− IT = 97,76, β− = 2,24166Dy 81,6 h 0,486 0+ β−167Dy 6,20 min 2,35 (1/2−) β−168Dy 8,7 min 1,6 0+ β−169Dy 39 s 3,2 (5/2−) β−

67 Holmium