Liste der Isotope/Ordnungszahl 91 bis Ordnungszahl 100

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

91 Protactinium Iso­top Halb­werts­zeit Zerfalls­energie(MeV) Spin /Parität Zerfalls­art(en)(%) Masse(u)212Pa 5,1 ms (3+) α = ? 213Pa 5,3 ms α = ? 214Pa 17 ms α = ? 215Pa 14 ms 8,17 α 216Pa 0,20 s 8,10 (?) α ≈ 98, ε ≈ 2 217Pa 4,9 ms 8,49 α 217m1Pa 1,6 ms 10,344 α < 100 218Pa 0,12 ms 9,79 α 219Pa 53 ns 10,08 9/2− α ≈ 100, εβ+ ≈ 5·10−9 220Pa 0,78 µs 9,83 (α), 5,72 (εβ+) α ≈ 100, εβ+ = 3·10−7 221Pa 5,9 µs 9,25 9/2− α 222Pa 2,9 ms 8,85 α 223Pa 6,5 ms 8,34 α ≈ 100, εβ+ < 1,0·10−3 224Pa 0,79 s 7,694 α 225Pa 1,7 s 7,39 α 226Pa 1,8 min 6,987 (α), 2,834 (εβ+) α = 74, εβ+ = 26 227Pa 38,3 min 6,580 (α), 1,019 (ε) (5/2−) α = 85, ε = 15 228Pa 22 h 2,148 (εβ+), 6,265 (α) 3+ εβ+ = 98,0, α = 2,0 229Pa 1,50 d 0,316 (ε), 5,841 (α) (5/2+) ε ≈ 100, α = 0,48 230Pa 17,4 d 1,310 (εβ+), 0,563 (β−), 5,439 (α) (2−) εβ+ = 91,6, β− = 8,4, α = 0,0032 231Pa 32760 a 5,149 (α), 51,843 (23F), 60,41 (24Ne) 3/2− α ≈ 100, SF < 1,6·10−11, 23F = 1·10−12, 24Ne = 6·10−10 232Pa 1,31 d 1,337 (β−), 0,495 (ε) (2−) β− ≈ 100, ε = 0,003 233Pa 26,967 d 0,571 3/2− β− 234Pa 6,70 h 2,197 4+ β− ≈ 100, SF < 3·10−10 234m1Pa 1,17 min 2,271 (β−), 0,074 (ε) (0−) β− ≈ 100, IT = 0,16, SF < 1·10−9 235Pa 24,5 min 1,41 (3/2−) β− 236Pa 9,1 min 2,9 1(−) β− 237Pa 8,7 min 2,25 (1/2+) β− 238Pa 2,3 min 3,46 (β−) (3−) β− ≈ 100, SF < 2,6·10−6

92 Uran Iso­top Halb­werts­zeit Zerfalls­energie(MeV) Spin /Parität Zerfalls­art(en)(%) NH(%) Masse(u)216U 4,5 ms 8,53 0+ α 217U 16 ms 8,44 0+ α 218U 510 µs 8,78 0+ α 219U 42 µs 9,94 α 220U 60 ns 0+ 221U 660 ns α 222U 4,7 µs 9,5 0+ α 223U 18 µs 8,94 α = ? 224U 0,84 ms 8,62 0+ α 225U 95 ms 8,02 α 226U 0,268 s 7,715 0+ α 227U 1,1 min 7,211 (α) (3/2+) α ≈ 100, εβ+ < 0,001 228U 9,1 min 6,804 (α), 0,307 (ε) 0+ α > 95, ε < 5 229U 58 min 1,309 (εβ+), 6,475 (α) (3/2+) εβ+ ≈ 80, α ≈ 20 230U 20,8 d 5,993 (α), 61,387 (22Ne) 0+ α ≈ 100, SF < 1,4·10−10, 22Ne = 5·10−11 231U 4,2 d 0,36 (ε), 5,55 (α) (5/2−) ε ≈ 100, α ≈ 0,0055 232U 68,9 a 5,414 (α), 62,309 (24Ne), 74,318 (28Mg) 0+ α ≈ 100, 24Ne = 1,89·10−10, 28Mg = 1,2·10−11 233U 1,592·105 a 4,909 (α), 60,485 (24Ne), 60,776 (25Ne), 74,225 (28Mg) 5/2+ α ≈ 100, SF < 6·10−11, 24Ne = 7,4·10−11, 25Ne = 7,2·10−11, 28Mg = 1,3·10−13 234U 2,455·105 a 4,859 (α), 58,825 (24Ne), 59,464 (26Ne), 74,11 (28Mg) 0+ α ≈ 100, SF = 1,64·10−9, 24Ne = 9·10−12?, 26Ne = 9·10−12?, 28Mg = 2,2·10−13 0,0055 234,0409503235U 7,038·108 a 4,679 (α), 57,362 (24Ne), 57,756 (25Ne), 72,158 (28Mg), 72,485 (29Mg) 7/2− α ≈ 100, SF = 7,0·10−9, 24Ne = 8·10−10?, 25Ne = 8·10−10?, 28Mg = 1,8·10−10?, 29Mg = 1,8·10−10? 0,7200 235,0439281235m1U 25 min ??? 1/2+ IT 236U 2,342·107 a 4,572 (α), 55,944 (24Ne), 56,744 (26Ne), 70,564 (28Mg), 72,303 (30Mg) 0+ α ≈ 100, SF = 9,4·10−8, 24Ne = 9·10−10?, 26Ne = 9·10−10?, 28Mg = 2·10−11?, 30Mg = 2·10−11? 237U 6,75 d 0,519 1/2+ β− 238U 4,468·109 a 4,270 (α) 0+ α ≈ 100, SF = 5,45·10−5, 2β = 2,2·10−10 99,2745 238,050787618238m1U 225 ns 0+ 238m2U 1 ns 239U 23,45 min 1,265 5/2+ β− 240U 14,1 h 0,338 0+ β− 241U 242U 16,8 min 0+ β−

93 Neptunium Iso­top Halb­werts­zeit Zerfalls­energie(MeV) Spin /Parität Zerfalls­art(en)(%) Masse(u)225Np 6 ms α = ? 226Np 35 ms 8,2 α 227Np 0,51 s 7,816 (α) α ≈ 100, εβ+ ≈ 0,05 228Np 61,4 s 4,48 (ε), 7,42 (α) ε = 60, α = 40, εSF = 0,020 229Np 4,0 min 7,01 (α), 2,56 (ε) α > 50, ε < 50 230Np 4,6 min 3,61 (εβ+), 6,78 (α) εβ+ < 97, α > 3 231Np 48,8 min 1,84 (ε), 6,37 (α) (5/2) ε = 98, α = 2 232Np 14,7 min 2,70 (4+) εβ+ 233Np 36,2 min 1,23 (ε), 5,83 (α) (5/2+) ε = 100, α < 0,001 234Np 4,4 d 1,81 (0+) εβ+ 235Np 396,1 d 0,124 (ε), 5,192 (α) 5/2+ ε ≈ 100, α = 0,00260 236Np 1,54·105 a 0,94 (ε), 0,49 (β−), 5,02 (α) (6−) ε = 87,3, β− = 12,5, α = 0,16 236m1Np 22,5 h 1,00 (ε), 0,55 (β−) 1 ε = 52, β− = 48 237Np 2,144·106 a 4,959 (α), 74,818 (30Mg) 5/2+ α ≈ 100, SF < 2·10−10, 30Mg = 8·10−12 237m1Np 45 ns α ≈ 100, SF = ? 238Np 2,117 d 1,292 2+ β− 238m1Np 112 ns 239Np 2,3565 d 0,722 5/2+ β− 240Np 61,9 min 2,20 (5+) β− 240m1Np 7,22 min 2,20 (β−), 0 (IT) 1(+) β− ≈ 100, IT = 0,11 241Np 13,9 min 1,31 (5/2+) β− 242Np 5,5 min 2,70 (6) β− 242m1Np 2,2 min 2,70 (1+) β− 243Np 1,8 min 2,17 (5/2−) β− 244Np 2,29 min (7−) β−

94 Plutonium Iso­top Halb­werts­zeit Zerfalls­energie(MeV) Spin /Parität Zerfalls­art(en)(%) NH(%)228Pu 4 ms 7,95 0+ α 229Pu 90 s α 230Pu 1,7 min 7,175 (α) 0+ α < 100, εβ+ > 0 231Pu 8,6 min εβ+ = ?, α = ? 232Pu 34,1 min 1,06 (εβ+), 6,716 (α) 0+ ε = 77, α = 23 233Pu 20,9 min 1,90 (εβ+), 6,42 (α) εβ+ ≈ 100, α = 0,12 234Pu 8,8 h 0,388 (εβ+), 6,31 (α) 0+ ε ≈ 94, α ≈ 6 234m1Pu 3 ns 235Pu 25,3 min 1,17 (εβ+), 6,00 (α) (5/2+) εβ+ ≈ 100, α = 0,0027 235m1Pu 25 ns 236Pu 2,858 a 5,867 (α), 79,669 (28Mg) 0+ α ≈ 100, SF = 1,37·10−7, 28Mg = 8·10−12 236m1Pu 37·10−12 s (0+) 236m2Pu 34 ns 237Pu 45,2 d 0,22 (ε), 5,75 (α) 7/2− ε ≈ 100, α = 0,0042 237m1Pu 0,18 s 0,146 (IT) 1/2+ IT 237m2Pu 85 ns SF ≤ 100 237m3Pu 1,1 µs SF ≤ 100 238Pu 87,74 a 5,593 (α), 75,911 (28Mg), 76,823 (30Mg), 76,823 (32Si) 0+ α ≈ 100, SF = 1,85·10−7, 28Mg ≈ 6·10−15?, 30Mg ≈ 6·10−15?, 32Si ≈ 1,4·10−14 238m1Pu 0,6 ns SF ≤ 100 238m2Pu 6,0 ns (0+) SF ≤ 100 239Pu 24110 a 5,245 (α) 1/2+ α ≈ 100, SF = 3,0·10−10 239m1Pu 7,5 µs (5/2+) 239m2Pu 2,6 ns (9/2−) 240Pu 6563 a 5,256 (α), 91,191(34Si) 0+ α ≈ 100, SF = 5,75·10−6, 34Si = 1,1·10−12 240m1Pu 3,7 ns 0+ SF > 0 241Pu 14,35 a 0,021 (β−), 5,140 (α) 5/2+ β− ≈ 100, α = 0,0025, SF ≈ 2,4·10−14 241m1Pu 21 µs SF > 0 241m2Pu 32 ns 242Pu 3,733·105 a 4,984 (α) 0+ α ≈ 100, SF = 5,54·10−4 243Pu 4,956 h 0,528 7/2+ β− 243m1Pu 45 ns 244Pu 8,00·107 a 4,666 (α) 0+ α = 99,879, SF = 0,121, 2β < 3·10−11 100 244m1Pu 0,4 ns 0+ SF ≤ 100 245Pu 10,5 h 1,205 (9/2−) β− 245m1Pu 90 ns 246Pu 10,84 d 0,401 0+ β− 247Pu 2,27 d β−

95 Americium Iso­top Halb­werts­zeit Zerfalls­energie(MeV) Spin /Parität Zerfalls­art(en)(%) Masse(u)232Am 79 s ? (ε), 7,2 (α) ε ≈ 98, α ≈ 2, εSF = 0,069 233Am 4,17 (εβ+), 6,87 (α) εβ+ ≈ 100, α = 0,04 234Am 2,32 min ε ≈ 100, α = 0,039, εSF = 0,0066 235Am 15 min εβ+ = ?, α = ? 236Am 3,28 (ε), 6,45 (α) ε = ?, α = ? 237Am 73,0 min 1,73 (ε), 6,25 (α) 5/2(−) ε ≈ 100, α = 0,025 237m1Am 5 ns SF = ? 238Am 98 min 2,26 (εβ+), 6,04 (α) 1+ εβ+ ≈ 100, α = 1,0·10−4 238m1Am 35 µs 239Am 11,9 h 0,803 (ε), 5,924 (α) (5/2)− ε ≈ 100, α = 0,010 239m1Am 163 ns (7/2+) 240Am 50,8 h 1,379 (ε), 5,710 (α) (3−) ε = 100, α = 1,9·10−4 240m1Am 0,924 ms SF = ? 241Am 432,2 a 5,638 (α), 93,927 (34Si) 5/2− α ≈ 100, SF = 4,3·10−10, 34Si = 5·10−13 241m1Am 1,2 µs 242Am 16,02 h 0,665 (β−), 0,751 (ε) 1− β− = 82,7, ε = 17,3 242m1Am 141 a 0,049 (β−), 5,637 (α) 5− IT ≈ 100, α = 0,459, SF < 4,7·10−9 242m2Am 14,0 ms 2,20 (β−), 7,788 (α) SF = ?, IT = ? 243Am 7370 a 5,438 (α) 5/2− α ≈ 100, SF = 3,7·10−9 243m1Am 5,5 µs 244Am 10,1 h 1,428 (β−) (6−) β− 244m1Am 6,5 µs SF = ? 244m2Am 26 min 1,516 (β−), 0,164 (ε) 1+ β− ≈ 100, ε = 0,0361 245Am 2,05 h 0,894 (5/2)+ β− 245m1Am 0,64 µs 246Am 39 min 2,376 (7−) β− 246m1Am 25,0 min 2,376 (β−), 0 (IT) 2(−) β− ≈ 100, IT < 0,01 246m2Am 73 µs 247Am 23,0 min 1,7 (5/2) β− 248Am 3,1 (5/2) β−

96 Curium Iso­top Halb­werts­zeit Zerfalls­energie(MeV) Spin /Parität Zerfalls­art(en)(%) Masse(u)233Cm 1 min 3/2+ 234Cm 51 s 0+ β+ = 47, SF = 3 235Cm 5 min 5/2+ 235pCm 236Cm 10 min 1,71 (εβ+), 7,1 (α) 0+ εβ+ = ?, α = ? 237Cm 20 min 5/2+ α = ? 237pCm 7/2− 238Cm 2,4 h 0,97 (ε), 6,62 (α) 0+ ε = 96,16, α = 3,84 239Cm 2,9 h 1,7 (ε), 6,46 (α) (7/2−) ε ≈ 100, α < 0,1 240Cm 27 d 6,397 (α), 0,215 (ε) 0+ α ≈ 100, ε < 0,5, SF = 3,9·10−6 240m1Cm 10 ps SF ≤ 100 240m2Cm 55 ns SF ≈ 100 241Cm 32,8 d 0,767 (ε), 6,185 (α) 1/2+ ε ≈ 100, α = 1,0 241m1Cm 15,3 ns 242Cm 162,8 d 6,216 (α), 96,51 (34Si) 0+ α ≈ 100, SF = 6,37·10−6, 34Si = 1·10−14 242m1Cm 40 ps s 242m2Cm 0,18 µs 2,80 (IT) IT = ?, SF = ? 243Cm 29,1 a 6,196 (α), 0,009 (ε) 5/2+ α ≈ 100, ε = 0,29 , SF = 5,3·10−9 243m1Cm 42 ns 244Cm 18,10 a 5,902 (α) 0+ α ≈ 100, SF = 1,371·10−4 244m1Cm 34 ms 1,04 (IT) 6+ IT = 100, SF < 7,7·10−10 245Cm 8500 a 5,623 (α) 7/2+ α ≈ 100, SF = 6,1·10−7 245m1Cm 13,2 ns 246Cm 4730 a 5,475 (α) 0+ α ≈ 100, SF = 0,0263 247Cm 1,56·107 a 5,353 9/2− α 248Cm 3,40·105 a 5,162 (α) 0+ α = 91,61, SF = 8,39 249Cm 64,15 min 1/2(+) β− 250Cm 9000 a 5,169 (α), 0,90 (β−) 0+ SF ≈ 86, α ≈ 8, β− ≈ 6 251Cm 16,8 min 1,42 (1/2+) β− 252Cm 2 d 0+ β−

97 Berkelium Iso­top Halb­werts­zeit Zerfalls­energie(MeV) Spin /Parität Zerfalls­art(en)(%) Masse(u)238Bk 144 s 5,0 (εβ+) εβ+ ≈ 100, εSF = 0,048 239Bk (7/2+) 240Bk 4,8 min 3,94 (εβ+) εβ+ ≈ 100, εSF = 1·10−3 241Bk (7/2+) 242Bk 7,0 min 3,0 (εβ+) εβ+ ≈ 100, SF > 0 242m1Bk 9,5 ns 242m2Bk 0,60 µs 243Bk 4,5 h 1,508 (ε), 6,874 (α) (3/2−) ε ≈ 100, α ≈ 0,15 243m1Bk 5 ns 244Bk 4,35 h 2,26 (ε), 6,78 (α) (1−) ε ≈ 100, α = 0,006 244m1Bk 820 ns SF ≤ 100 245Bk 4,94 d 0,81 (ε), 6,455 (α) 3/2− ε ≈ 100, α = 0,12 245m1Bk 2 ns 246Bk 1,80 d 1,35 (ε), 6,07 (α) 2(−) ε = 100, α < 0,2 247Bk 1380 a 5,889 (3/2−) α < 100 248Bk 9 a 5,803 (6+) α > 70 248m1Bk 23,7 h 0,87 (β−), 0,717 (ε), 5,803 (α) 1(−) β− = 70, ε = 30, α < 0,001 249Bk 320 d 0,125 (β−), 5,526 (α) 7/2+ β− ≈ 100, α = 0,00145, SF = 4,76·10−8 250Bk 3,217 h 1,78 2− β− 251Bk 55,6 min 1,093 (β−), 5,57 (α) (3/2−) β− ≈ 100, α ≈ 1·10−5

98 Californium Iso­top Halb­werts­zeit Zerfalls­energie(MeV) Spin /Parität Zerfalls­art(en)(%) Masse(u)237Cf 2,1 s SF ≈ 10 238Cf 21 ms 0+ SF ≈ 100 239Cf 39 s 7,81 (α), 3,9 (ε) α > 50, ε < 50 240Cf 1,06 min 7,719 (α) 0+ α ≈ 87, SF ≈ 13 241Cf 3,78 min 3,3 (ε), 7,66 (α) ε ≈ 75, α ≈ 25 242Cf 3,49 min 7,516 (α) 0+ α = 65, SF < 1,4·10−2 243Cf 10,7 min 2,22 (ε), 7,39 (α) (1/2+) ε ≈ 86, α ≈ 14 244Cf 19,4 min 7,329 0+ α = 70 245Cf 45,0 min 1,569 (ε), 7,256 (α) (5/2+) ε = 64, α = 36 246Cf 35,7 h 6,862 (α), 0,12 (ε) 0+ α ≈ 100, SF = 2,3·10−4, ε < 5·10−4 246m1Cf 45 ns 247Cf 3,11 h 0,646 (ε), 6,527 (α) (7/2+) ε ≈ 100, α = 0,035 248Cf 333,5 d 6,361 (α) 0+ α ≈ 100, SF = 0,0029 249Cf 351 a 6,295 (α) 9/2− α ≈ 100, SF = 4,4·10−7 250Cf 13,08 a 6,176 (α) 0+ α ≈ 100, SF = 0,077 251Cf 898 a 6,176 (α) 1/2+ α 252Cf 2,645 a 6,217 (α) 0+ α = 96,908, SF = 3,092 253Cf 17,81 d 0,285 (β−), 6,124 (α) (7/2+) β− = 99,69, α = 0,31 254Cf 60,5 d 5,926 (α) 0+ SF = 99,69, α = 0,31 255Cf 85 min 0,7 (9/2+) β− 256Cf 12,3 min 5,6 (α) 0+ SF = 100, β− < 1, α ≈ 1·10−6

99 Einsteinium Iso­top Halb­werts­zeit Zerfalls­energie(MeV) Spin /Parität Zerfalls­art(en)(%) Masse(u)241Es 9 s α 242Es 40 s 5,6 (ε) α ≈ 100, εSF = 1,4 243Es 21 s 4,0 (ε), 8,072 (α) ε < 70, α > 30 244Es 37 s 4,56 (ε), 7,95 (α) ε = 96, α = 4, εSF = 0,01 245Es 1,1 min 3,05 (ε), 7,909 (α) (3/2−) ε = 60, α = 40 246Es 7,7 min 3,88 (ε), 7,74 (α) (4−, 6+) ε = 90,1, α = 9,9, εSF = 0,003 247Es 4,55 min 2,48 (ε), 7,49 (α) (7/2+) ε ≈ 93, α ≈ 7 248Es 27 min (2−, 0+) ε ≈ 100, α ≈ 0,25, εSF = 3·10−5 249Es 102,2 min 1,45 (ε), 6,94 (α) 7/2(+) ε ≈ 100, α = 0,57 250Es 8,6 h 2,10 (ε), 6,88 (α) (6+) ε > 97, α < 3 250m1Es 2,22 h 2,10 (ε), 6,88 (α) 1(−) ε ≈ 100, α < 1 251Es 33 h 0,376 (ε), 6,597 (α) (3/2−) ε ≈ 100, α = 0,49 252Es 471,7 d 6,76 (α), 1,26 (ε), 0,48 (β−) (5−) α = 76, ε = 24, β− ≈ 0,01 253Es 20,47 d 6,739 (α) 7/2+ α ≈ 100, SF = 8,9·10−6 254Es 275,7 d 6,628 (α), 0,654 (ε), 1,09 (β−) (7+) α ≈ 100, ε < 1·10−4, β− = 1,74·10−6, SF < 3·10−6 254m1Es 39,3 h 1,168 (β−), 0,078 (IT), 6,696 (α), 0,732 (ε) 2+ β− ≈ 100, α = 0,33, IT < 3, ε = 0,078, SF < 0,045 255Es 39,8 d 0,288 (β−), 6,436 (α) (7/2+) β− = 92,0, α = 8,0, SF = 0,0045 256Es 25,4 min 1,67 (1+) β− 256m1Es 7,6 h 1,67 (β−) (8+) β− ≈ 100, SF = 0,002 257Es 7,8 d SF = ?, β− = ?

100 Fermium