Liste der Isotope/Ordnungszahl 91 bis Ordnungszahl 100
Wikimedia-Liste
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.[1]
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
BearbeitenIsotop | Halbwertszeit | Zerfallsenergie (MeV) |
Spin / Parität |
Zerfallsart(en) (%) |
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 |
235U | 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 |
235m1U | 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 |
238m1U | 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− |
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− |
Isotop | Halbwertszeit | Zerfallsenergie (MeV) |
Spin / Parität |
Zerfallsart(en) (%) |
Masse (u) |
---|---|---|---|---|---|
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− |
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
BearbeitenIsotop | 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− |
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 |
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 |
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
BearbeitenIsotop | Halbwertszeit | Zerfallsenergie (MeV) |
Spin / Parität |
Zerfallsart(en) (%) |
Masse (u) |
---|---|---|---|---|---|
242Fm | 0,8 ms | 0+ | SF | ||
243Fm | 0,18 s | 8,69 (α) | α < 100, SF < 0,5, ε = ? | ||
244Fm | 3,3 ms | 0+ | SF | ||
245Fm | 4,2 s | 8,44 (α) | α ≈ 100, SF < 0,11 | ||
246Fm | 1,1 s | 8,374 (α), 2,16 (ε) | 0+ | α = 92, SF = 7,3, ε < 1 | |
247Fm | 35 s | 8,19 (α) | α > 50, εβ+ < 50 | ||
247m1Fm | 9,2 s | α < 100 | |||
248Fm | 36 s | 8,002 (α), 1,6 (ε) | 0+ | α = 93, ε ≈ 7, SF = 0,10 | |
249Fm | 2,6 min | 2,44 (ε), 7,81 (α) | (7/2+) | ε ≈ 85, α ≈ 15 | |
250Fm | 30 min | 7,557 (α), 0,8 (ε) | 0+ | α > 90, ε < 10, SF = 0,0069 | |
250m1Fm | 1,8 s | 1,0 (IT) | IT > 80, SF < 8·10−5 | ||
251Fm | 5,30 h | 1,474 (ε), 7,425 (α) | (9/2−) | ε = 98,20, α = 1,80 | |
252Fm | 25,39 h | 7,153 (α) | 0+ | α ≈ 100, SF = 0,00232 | |
253Fm | 3,00 d | 0,333 (ε), 7,197 (α) | 1/2+ | ε = 88, α = 12 | |
254Fm | 3,240 h | 7,307 (α) | 0+ | α ≈ 100, SF = 0,0592 | |
255Fm | 20,07 h | 7,241 (α) | 7/2+ | α ≈ 100, SF = 2,3·10−5 | |
256Fm | 157,6 min | 7,027 (α) | 0+ | SF = 91,9, α = 8,1 | |
256m1Fm | 70 ns | IT > 80, SF = ? | |||
257Fm | 100,5 d | 6,864 (α) | (9/2+) | α = 99,790, SF = 0,210 | |
258Fm | 370 µs | 0+ | SF | ||
259Fm | 1,5 s | SF | |||
260Fm | 4 ms | SF |
Quellen
BearbeitenSiehe auch Liste der Isotope#Weblinks