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
|-
| 227Pu
| 94
| 133
| 227.03947(11)#
| 秒
|
| 223U
| 5/2+#
|
|-
| rowspan=2|228Pu
| rowspan=2 style="text-align:right" | 94
| rowspan=2 style="text-align:right" | 134
| rowspan=2|228.03874(3)
| rowspan=2|1.1(+20−5) 秒
| (99.9%)
| 224U
| rowspan=2|0+
| rowspan=2|
|-
| (.1%)
| 228Np
|-
| 229Pu
| style="text-align:right" | 94
| style="text-align:right" | 135
| 229.04015(6)
| 120(50) 秒
|
| 225U
| 3/2+#
|
|-
| rowspan=2|230Pu
| rowspan=2 style="text-align:right" | 94
| rowspan=2 style="text-align:right" | 136
| rowspan=2|230.039650(16)
| rowspan=2|1.70(17) 分鐘
|
| 226U
| rowspan=2|0+
| rowspan=2|
|-
| （不常見）
| 230Np
|-
| rowspan=2|231Pu
| rowspan=2 style="text-align:right" | 94
| rowspan=2 style="text-align:right" | 137
| rowspan=2|231.041101(28)
| rowspan=2|8.6(5) 分鐘
|
| 231Np
| rowspan=2|3/2+#
| rowspan=2|
|-
| （不常見）
| 227U
|-
| rowspan=2|232Pu
| rowspan=2 style="text-align:right" | 94
| rowspan=2 style="text-align:right" | 138
| rowspan=2|232.041187(19)
| rowspan=2|33.7(5) 分鐘
| (89%)
| 232Np
| rowspan=2|0+
| rowspan=2|
|-
| (11%)
| 228U
|-
| rowspan=2|233Pu
| rowspan=2 style="text-align:right" | 94
| rowspan=2 style="text-align:right" | 139
| rowspan=2|233.04300(5)
| rowspan=2|20.9(4) 分鐘
| (99.88%)
| 233Np
| rowspan=2|5/2+#
| rowspan=2|
|-
| (.12%)
| 229U
|-
| rowspan=2|234Pu
| rowspan=2 style="text-align:right" | 94
| rowspan=2 style="text-align:right" | 140
| rowspan=2|234.043317(7)
| rowspan=2|8.8(1) 小時
| (94%)
| 234Np
| rowspan=2|0+
| rowspan=2|
|-
| (6%)
| 230U
|-
| rowspan=2|235Pu
| rowspan=2 style="text-align:right" | 94
| rowspan=2 style="text-align:right" | 141
| rowspan=2|235.045286(22)
| rowspan=2|25.3(5) 分鐘
| (99.99%)
| 235Np
| rowspan=2|(5/2+)
| rowspan=2|
|-
| (.0027%)
| 231U
|-
| rowspan="3" |236Pu
| rowspan="3" style="text-align:right" | 94
| rowspan="3" style="text-align:right" | 142
| rowspan="3" |236.0460580(24)
| rowspan="3" |2.858(8) 年
|
| 232U
| rowspan="3" |0+
| rowspan="3" |
|-
| SF (1.37×10−7%)
| (various)
|-
| (2×10−12%)
| 208Pb
28Mg
|-
| rowspan=2|237Pu
| rowspan=2 style="text-align:right" | 94
| rowspan=2 style="text-align:right" | 143
| rowspan=2|237.0484097(24)
| rowspan=2|45.2(1) 日
|
| 237Np
| rowspan=2|7/2−
| rowspan=2|
|-
| (.0042%)
| 233U
|-
| style="text-indent:1em" | 237m1Pu
| colspan="3" style="text-indent:2em" | 145.544(10)2 keV
| 180(20) 毫秒
| IT
| 237Pu
| 1/2+
|
|-
| style="text-indent:1em" | 237m2Pu
| colspan="3" style="text-indent:2em" | 2900(250) keV
| 1.1(1) 微秒
|
|
|
|
|-
| rowspan=4|
| rowspan=4 style="text-align:right" | 94
| rowspan=4 style="text-align:right" | 144
| rowspan=4|238.0495599(20)
| rowspan=4|87.7(1) 年
|
| 234U
| rowspan=4|0+
| rowspan=4|痕量
|-
| SF (1.9×10−7%)
| (various)
|-
| CD (1.4×10−14%)
| 206Hg
32Si
|-
| CD (6×10−15%)
| 180Yb
30Mg
28Mg
|-
| rowspan=2|
| rowspan=2 style="text-align:right" | 94
| rowspan=2 style="text-align:right" | 145
| rowspan=2|239.0521634(20)
| rowspan=2|2.411(3)×104 年
|
| 235U
| rowspan=2|1/2+
| rowspan=2|痕量
|-
| SF (3.1×10−10%)
| (various)
|-
| style="text-indent:1em" | 239m1Pu
| colspan="3" style="text-indent:2em" | 391.584(3) keV
| 193(4) 奈秒
|
|
| 7/2−
|
|-
| style="text-indent:1em" | 239m2Pu
| colspan="3" style="text-indent:2em" | 3100(200) keV
| 7.5(10) 微秒
|
|
| (5/2+)
|
|-
| rowspan=3|
| rowspan=3 style="text-align:right" | 94
| rowspan=3 style="text-align:right" | 146
| rowspan=3|240.0538135(20)
| rowspan=3|6,561(7) 年
|
| 236U
| rowspan=3|0+
| rowspan=3|痕量
|-
| SF (5.7×10−6%)
| (various)
|-
| CD (1.3×10−13%)
| 206Hg
34Si
|-
| rowspan=3|
|-
| SF (.123%)
| (various)
|-
| 245Pu
| style="text-align:right" | 94
| style="text-align:right" | 151
| 245.067747(15)
| 10.5(1) 小時
|
| 245Am
| (9/2−)
|
|-
| 246Pu
| style="text-align:right" | 94
| style="text-align:right" | 152
| 246.070205(16)
| 10.84(2) 日
|
| 246mAm
| 0+
|
|-
| 247Pu
| style="text-align:right" | 94
| style="text-align:right" | 153
| 247.07407(32)#
| 2.27(23) 日
|
| 247Am
| 1/2+#
|
|}
参考文獻
- Isotope masses from [https://web.archive.org/web/20080923134436/http://www.nndc.bnl.gov/amdc/index.html 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. [http://amdc.in2p3.fr/web/nubase_en.html The Nubase2003 evaluation of nuclear and decay properties] , Nuc. Phys. A 729, pp. 3-128 (2003).
** National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the [http://www.nndc.bnl.gov/nudat2/ NuDat 2.1 database] (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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