鈽的同位素
外观
(重定向自鈽-236)
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鈽没有稳定同位素。它最稳定的同位素是半衰期8130万年的244Pu。
圖表
[编辑]符號 | Z | N | 同位素質量(u) [n 1][n 2] |
半衰期 [n 2] |
衰變 方式[1] |
衰變 產物 [n 3][n 4] |
原子核 自旋[n 1] |
相對豐度 (莫耳分率) |
---|---|---|---|---|---|---|---|---|
激發能量[n 2] | ||||||||
228Pu | 94 | 134 | 228.03874(3) | 1.1(+20−5) 秒 | α (99.9%) | 224U | 0+ | |
β+ (.1%) | 228Np | |||||||
229Pu | 94 | 135 | 229.04015(6) | 120(50) 秒 | α | 225U | 3/2+# | |
230Pu | 94 | 136 | 230.039650(16) | 1.70(17) 分鐘 | α | 226U | 0+ | |
β+ (不常見) | 230Np | |||||||
231Pu | 94 | 137 | 231.041101(28) | 8.6(5) 分鐘 | β+ | 231Np | 3/2+# | |
α (不常見) | 227U | |||||||
232Pu | 94 | 138 | 232.041187(19) | 33.7(5) 分鐘 | ε (89%) | 232Np | 0+ | |
α (11%) | 228U | |||||||
233Pu | 94 | 139 | 233.04300(5) | 20.9(4) 分鐘 | β+ (99.88%) | 233Np | 5/2+# | |
α (.12%) | 229U | |||||||
234Pu | 94 | 140 | 234.043317(7) | 8.8(1) 小時 | ε (94%) | 234Np | 0+ | |
α (6%) | 230U | |||||||
235Pu | 94 | 141 | 235.045286(22) | 25.3(5) 分鐘 | β+ (99.99%) | 235Np | (5/2+) | |
α (.0027%) | 231U | |||||||
236Pu | 94 | 142 | 236.0460580(24) | 2.858(8) 年 | α | 232U | 0+ | |
SF (1.37×10−7%) | (various) | |||||||
CD (2×10−12%) | 208Pb 28Mg | |||||||
237Pu | 94 | 143 | 237.0484097(24) | 45.2(1) 日 | ε | 237Np | 7/2− | |
α (.0042%) | 233U | |||||||
237m1Pu | 145.544(10)2 keV | 180(20) 毫秒 | IT | 237Pu | 1/2+ | |||
237m2Pu | 2900(250) keV | 1.1(1) 微秒 | ||||||
238 Pu |
94 | 144 | 238.0495599(20) | 87.7(1) 年 | α | 234U | 0+ | 痕量[n 5] |
SF (1.9×10−7%) | (various) | |||||||
CD (1.4×10−14%) | 206Hg 32Si | |||||||
CD (6×10−15%) | 180Yb 30Mg 28Mg | |||||||
239 Pu [n 6][n 7] |
94 | 145 | 239.0521634(20) | 2.411(3)×104 年 | α | 235U | 1/2+ | 痕量[n 8] |
SF (3.1×10−10%) | (various) | |||||||
239m1Pu | 391.584(3) keV | 193(4) 奈秒 | 7/2− | |||||
239m2Pu | 3100(200) keV | 7.5(10) 微秒 | (5/2+) | |||||
240 Pu |
94 | 146 | 240.0538135(20) | 6,561(7) 年 | α | 236U | 0+ | 痕量[n 9] |
SF (5.7×10−6%) | (various) | |||||||
CD (1.3×10−13%) | 206Hg 34Si | |||||||
241 Pu [n 6] |
94 | 147 | 241.0568515(20) | 14.290(6) 年 | β− (99.99%) | 241Am | 5/2+ | |
α (.00245%) | 237U | |||||||
SF (2.4×10−14%) | (various) | |||||||
241m1Pu | 161.6(1) keV | 0.88(5) 微秒 | 1/2+ | |||||
241m2Pu | 2200(200) keV | 21(3) 微秒 | ||||||
242 Pu |
94 | 148 | 242.0587426(20) | 3.75(2)×105 年 | α | 238U | 0+ | |
SF (5.5×10−4%) | (various) | |||||||
243Pu[n 6] | 94 | 149 | 243.062003(3) | 4.956(3) 小時 | β− | 243Am | 7/2+ | |
243mPu | 383.6(4) keV | 330(30) 奈秒 | (1/2+) | |||||
244 Pu |
94 | 150 | 244.064204(5) | 8.08×107 年 | α (99.88%) | 240U | 0+ | 痕量[n 10] |
SF (.123%) | (various) | |||||||
245Pu | 94 | 151 | 245.067747(15) | 10.5(1) 小時 | β− | 245Am | (9/2−) | |
246Pu | 94 | 152 | 246.070205(16) | 10.84(2) 日 | β− | 246mAm | 0+ | |
247Pu | 94 | 153 | 247.07407(32)# | 2.27(23) 日 | β− | 247Am | 1/2+# |
← | 同位素列表 | → |
錼的同位素 | 鈽的同位素 | 鋂的同位素 |
参考文獻
[编辑]- ^ Universal Nuclide Chart
. nucleonica. [2015-11-03]. (原始内容存档于2017-02-19).
- 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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