錒的同位素
维基媒体列表条目
錒没有稳定同位素。它最稳定的同位素是半衰期21.772年的227Ac。
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圖表编辑
| 符號 | 歷史 名稱 | Z（ p ） | N（ n ） | 同位素質量（u） | 半衰期 | 衰變 方式[1][n 1] | 衰變 產物[n 2] | 原子核 自旋 | 相對豐度 （莫耳分率） |
|---|---|---|---|---|---|---|---|---|---|
| 激發能量 | |||||||||
| 204Ac[2] | 89 | 115 | 7.4+2.2 −1.4 ms | α | 200Fr | ||||
| 205Ac[3] | 89 | 116 | 7.7+2.7 −1.6 ms[2] | α | 201Fr | 9/2−? | |||
| 206Ac | 89 | 117 | 206.01450(8) | 25(7) ms | α | 202Fr | (3+) | ||
| 206m1Ac | 80(50) keV | 15(6) ms | α | 202Fr | |||||
| 206m2Ac | 290(110)# keV | 41(16) ms | α | 202mFr | (10−) | ||||
| 207Ac | 89 | 118 | 207.01195(6) | 31(8) ms [27(+11−6) ms] | α | 203Fr | 9/2−# | ||
| 208Ac | 89 | 119 | 208.01155(6) | 97(16) ms [95(+24−16) ms] | α (99%) | 204Fr | (3+) | ||
| β+ (1%) | 208Ra | ||||||||
| 208mAc | 506(26) keV | 28(7) ms [25(+9−5) ms] | α (89%) | 204Fr | (10−) | ||||
| IT (10%) | 208Ac | ||||||||
| β+ (1%) | 208Ra | ||||||||
| 209Ac | 89 | 120 | 209.00949(5) | 92(11) ms | α (99%) | 205Fr | (9/2−) | ||
| β+ (1%) | 209Ra | ||||||||
| 210Ac | 89 | 121 | 210.00944(6) | 350(40) ms | α (96%) | 206Fr | 7+# | ||
| β+ (4%) | 210Ra | ||||||||
| 211Ac | 89 | 122 | 211.00773(8) | 213(25) ms | α (99.8%) | 207Fr | 9/2−# | ||
| β+ (.2%) | 211Ra | ||||||||
| 212Ac | 89 | 123 | 212.00781(7) | 920(50) ms | α (97%) | 208Fr | 6+# | ||
| β+ (3%) | 212Ra | ||||||||
| 213Ac | 89 | 124 | 213.00661(6) | 731(17) ms | α | 209Fr | (9/2−)# | ||
| β+ （不常見） | 213Ra | ||||||||
| 214Ac | 89 | 125 | 214.006902(24) | 8.2(2) s | α (89%) | 210Fr | (5+)# | ||
| β+ (11%) | 214Ra | ||||||||
| 215Ac | 89 | 126 | 215.006454(23) | 0.17(1) s | α (99.91%) | 211Fr | 9/2− | ||
| β+ (.09%) | 215Ra | ||||||||
| 216Ac | 89 | 127 | 216.008720(29) | 0.440(16) ms | α | 212Fr | (1−) | ||
| β+ (7×10−5%) | 216Ra | ||||||||
| 216mAc | 44(7) keV | 443(7) µs | (9−) | ||||||
| 217Ac | 89 | 128 | 217.009347(14) | 69(4) ns | α (98%) | 213Fr | 9/2− | ||
| β+ (2%) | 217Ra | ||||||||
| 217mAc | 2012(20) keV | 740(40) ns | (29/2)+ | ||||||
| 218Ac | 89 | 129 | 218.01164(5) | 1.08(9) µs | α | 214Fr | (1−)# | ||
| 218mAc | 584(50)# keV | 103(11) ns | (11+) | ||||||
| 219Ac | 89 | 130 | 219.01242(5) | 11.8(15) µs | α | 215Fr | 9/2− | ||
| β+ (10−6%) | 219Ra | ||||||||
| 220Ac | 89 | 131 | 220.014763(16) | 26.36(19) ms | α | 216Fr | (3−) | ||
| β+ (5×10−4%) | 220Ra | ||||||||
| 221Ac | 89 | 132 | 221.01559(5) | 52(2) ms | α | 217Fr | 9/2−# | ||
| 222Ac | 89 | 133 | 222.017844(6) | 5.0(5) s | α (99%) | 218Fr | 1− | ||
| β+ (1%) | 222Ra | ||||||||
| 222mAc | 200(150)# keV | 1.05(7) min | α (88.6%) | 218Fr | high | ||||
| IT (10%) | 222Ac | ||||||||
| β+ (1.4%) | 222Ra | ||||||||
| 223Ac | 89 | 134 | 223.019137(8) | 2.10(5) min | α (99%) | 219Fr | (5/2−) | ||
| ε (1%) | 223Ra | ||||||||
| CD (3.2×10−9%) | 209 Bi 14 C | ||||||||
| 224Ac | 89 | 135 | 224.021723(4) | 2.78(17) h | β+ (90.9%) | 224Ra | 0− | ||
| α (9.1%) | 220Fr | ||||||||
| β− (1.6%) | 224Th | ||||||||
| 225Ac[n 3] | 89 | 136 | 225.023230(5) | 10.0(1) d | α | 221Fr | (3/2−) | ||
| CD (6×10−10%) | 211 Bi 14 C | ||||||||
| 226Ac | 89 | 137 | 226.026098(4) | 29.37(12) h | β− (83%) | 226Th | (1)(−#) | ||
| ε (17%) | 226Ra | ||||||||
| α (.006%) | 222Fr | ||||||||
| 227Ac | Actinium[n 4] | 89 | 138 | 227.0277521(26) | 21.772(3) y | β− (98.61%) | 227Th | 3/2− | Trace[n 5] |
| α (1.38%) | 223Fr | ||||||||
| 228Ac | Mesothorium 2 | 89 | 139 | 228.0310211(27) | 6.13(2) h | β− | 228Th | 3+ | Trace[n 6] |
| 229Ac | 89 | 140 | 229.03302(4) | 62.7(5) min | β− | 229Th | (3/2+) | ||
| 230Ac | 89 | 141 | 230.03629(32) | 122(3) s | β− | 230Th | (1+) | ||
| 231Ac | 89 | 142 | 231.03856(11) | 7.5(1) min | β− | 231Th | (1/2+) | ||
| 232Ac | 89 | 143 | 232.04203(11) | 119(5) s | β− | 232Th | (1+) | ||
| 233Ac | 89 | 144 | 233.04455(32)# | 145(10) s | β− | 233Th | (1/2+) | ||
| 234Ac | 89 | 145 | 234.04842(43)# | 44(7) s | β− | 234Th | |||
| 235Ac | 89 | 146 | 235.05123(38)# | 40# s | β− | 235Th | 1/2+# | ||
| 236Ac | 89 | 147 | 236.05530(54)# | 2# min | β− | 236Th | |||
備註：畫上#號的數據代表沒有經過實驗的證明，只是理論推測而已，而用括號括起來的代表數據不確定性。
| ← | 同位素列表 | → |
| 鐳的同位素 | 錒的同位素 | 釷的同位素 |
註釋编辑
参考文獻编辑
- ^ Universal Nuclide Chart
. nucleonica. [2015-11-03]. （原始内容存档于2017-02-19）. - ^ 2.0 2.1 Huang, M. H.; Gan, Z. G.; Zhang, Z. Y.; et al. α decay of the new isotope 204Ac. Physics Letters B. 10 November 2022, 834: 137484. ISSN 0370-2693. S2CID 252730841. doi:10.1016/j.physletb.2022.137484
（英语）. - ^ Zhang, Z. Y.; Gan, Z. G.; Ma, L.; et al. α decay of the new neutron-deficient isotope 205Ac. Physical Review C. January 2014, 89 (1): 014308 [2015-11-03]. Bibcode:2014PhRvC..89a4308Z. doi:10.1103/PhysRevC.89.014308. （原始内容存档于2019-07-01）.
- Isotope masses from Ame2003 Atomic Mass Evaluation by G. Audi, A.H. Wapstra, C. Thibault, J. Blachot and O. Bersillon in Nuclear Physics A729 (2003).
- Half-life, spin, and isomer data selected from these sources. Editing notes on this article's talk page.
- Audi, Bersillon, Blachot, Wapstra. The Nubase2003 evaluation of nuclear and decay properties （页面存档备份，存于互联网档案馆）, Nuc. Phys. A 729, pp. 3-128 (2003).
- National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the NuDat 2.1 database （页面存档备份，存于互联网档案馆） (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.
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