錒的同位素

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。

圖表

|-
| 203Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 114
| 
| 
| 
| 199Fr
| (1/2+)
|
|-
|204Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 115
|
| 
| α
| 200Fr
|
|
|-
|205Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 116
|
| 
| α
| 201Fr
| 9/2−?
|
|-
| 206Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 117
| 206.01450(8)
| 25(7) ms
| α
| 202Fr
| (3+)
|
|-
| style="text-indent:1em" | 206m1Ac
|
| colspan="3" style="text-indent:2em" | 80(50) keV
| 15(6) ms
| α
| 202Fr
|
|
|-
| style="text-indent:1em" | 206m2Ac
|
| colspan="3" style="text-indent:2em" | 290(110)# keV
| 41(16) ms
| α
| 202mFr
| (10−)
|
|-
| 207Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 118
| 207.01195(6)
| 31(8) ms[27(+11−6) ms]
| 
| 203Fr
| 9/2−#
|
|-
| rowspan=2|208Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 119
| rowspan=2|208.01155(6)
| rowspan=2|97(16) ms[95(+24−16) ms]
|  (99%)
| 204Fr
| rowspan=2|(3+)
| rowspan=2|
|-
|  (1%)
| 208Ra
|-
| rowspan=3 style="text-indent:1em" | 208mAc
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 506(26) keV
| rowspan=3|28(7) ms[25(+9−5) ms]
|  (89%)
| 204Fr
| rowspan=3|(10−)
| rowspan=3|
|-
| IT (10%)
| 208Ac
|-
|  (1%)
| 208Ra
|-
| rowspan=2|209Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 120
| rowspan=2|209.00949(5)
| rowspan=2|92(11) ms
|  (99%)
| 205Fr
| rowspan=2|(9/2−)
| rowspan=2|
|-
|  (1%)
| 209Ra
|-
| rowspan=2|210Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 121
| rowspan=2|210.00944(6)
| rowspan=2|350(40) ms
|  (96%)
| 206Fr
| rowspan=2|7+#
| rowspan=2|
|-
|  (4%)
| 210Ra
|-
| rowspan=2|211Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 122
| rowspan=2|211.00773(8)
| rowspan=2|213(25) ms
|  (99.8%)
| 207Fr
| rowspan=2|9/2−#
| rowspan=2| 
|-
|  (.2%)
| 211Ra
|-
| rowspan=2|212Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 123
| rowspan=2|212.00781(7)
| rowspan=2|920(50) ms
|  (97%)
| 208Fr
| rowspan=2|6+#
| rowspan=2|
|-
|  (3%)
| 212Ra
|-
| rowspan=2|213Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 124
| rowspan=2|213.00661(6)
| rowspan=2|731(17) ms
| 
| 209Fr
| rowspan=2|(9/2−)#
| rowspan=2|
|-
|  （不常見）
| 213Ra
|-
| rowspan=2|214Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 125
| rowspan=2|214.006902(24)
| rowspan=2|8.2(2) s
|  (89%)
| 210Fr
| rowspan=2|(5+)#
| rowspan=2|
|-
|  (11%)
| 214Ra
|-
| rowspan=2|215Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 126
| rowspan=2|215.006454(23)
| rowspan=2|0.17(1) s
|  (99.91%)
| 211Fr
| rowspan=2|9/2−
| rowspan=2|
|-
|  (.09%)
| 215Ra
|-
| rowspan=2|216Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 127
| rowspan=2|216.008720(29)
| rowspan=2|0.440(16) ms
| 
| 212Fr
| rowspan=2|(1−)
| rowspan=2|
|-
|  (7×10−5%)
| 216Ra
|-
| style="text-indent:1em" | 216mAc
|
| colspan="3" style="text-indent:2em" | 44(7) keV
| 443(7) µs
|
|
| (9−)
|
|-
| rowspan=2|217Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 128
| rowspan=2|217.009347(14)
| rowspan=2|69(4) ns
|  (98%)
| 213Fr
| rowspan=2|9/2−
| rowspan=2|
|-
|  (2%)
| 217Ra
|-
| style="text-indent:1em" | 217mAc
|
| colspan="3" style="text-indent:2em" | 2012(20) keV
| 740(40) ns
|
|
| (29/2)+
|
|-
| 218Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 129
| 218.01164(5)
| 1.08(9) µs
| 
| 214Fr
| (1−)#
|
|-
| style="text-indent:1em" | 218mAc
|
| colspan="3" style="text-indent:2em" | 584(50)# keV
| 103(11) ns
|
|
| (11+)
|
|-
| rowspan=2|219Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 130
| rowspan=2|219.01242(5)
| rowspan=2|11.8(15) µs
| 
| 215Fr
| rowspan=2|9/2−
| rowspan=2|
|-
|  (10−6%)
| 219Ra
|-
| rowspan=2|220Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 131
| rowspan=2|220.014763(16)
| rowspan=2|26.36(19) ms
| 
| 216Fr
| rowspan=2|(3−)
| rowspan=2|
|-
|  (5×10−4%)
| 220Ra
|-
| 221Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 132
| 221.01559(5)
| 52(2) ms
| 
| 217Fr
| 9/2−#
|
|-
| rowspan=2|222Ac
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 133
| rowspan=2|222.017844(6)
| rowspan=2|5.0(5) s
|  (99%)
| 218Fr
| rowspan=2|1−
| rowspan=2|
|-
|  (1%)
| 222Ra
|-
| rowspan=3 style="text-indent:1em" | 222mAc
| rowspan=3|
| rowspan=3 colspan="3" style="text-indent:2em" | 200(150)# keV
| rowspan=3|1.05(7) min
|  (88.6%)
| 218Fr
| rowspan=3|high
| rowspan=3|
|-
| IT (10%)
| 222Ac
|-
|  (1.4%)
| 222Ra
|-
| rowspan=3|223Ac
| rowspan=3|
| rowspan=3 style="text-align:right" | 89
| rowspan=3 style="text-align:right" | 134
| rowspan=3|223.019137(8)
| rowspan=3|2.10(5) min
|  (99%)
| 219Fr
| rowspan=3|(5/2−)
| rowspan=3|
|-
|  (1%)
| 223Ra
|-
|  (3.2×10−9%)
| 
|-
| rowspan=3|224Ac
| rowspan=3|
| rowspan=3 style="text-align:right" | 89
| rowspan=3 style="text-align:right" | 135
| rowspan=3|224.021723(4)
| rowspan=3|2.78(17) h
|  (90.9%)
| 224Ra
| rowspan=3|0−
| rowspan=3|
|-
|  (9.1%)
| 220Fr
|-
|  (1.6%)
| 224Th
|-
| rowspan=2|225AcHas medical uses
| rowspan=2|
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 136
| rowspan=2|225.023230(5)
| rowspan=2|10.0(1) d
| 
| 221Fr
| rowspan=2|(3/2−)
| rowspan=2|
|-
|  (6×10−10%)
| 
|-
| rowspan=3|226Ac
| rowspan=3|
| rowspan=3 style="text-align:right" | 89
| rowspan=3 style="text-align:right" | 137
| rowspan=3|226.026098(4)
| rowspan=3|29.37(12) h
|  (83%)
| 226Th
| rowspan=3|(1)(−#)
| rowspan=3|
|-
|  (17%)
| 226Ra
|-
|  (.006%)
| 222Fr
|-
| rowspan=2|227Ac
| rowspan=2|ActiniumSource of element's name
| rowspan=2 style="text-align:right" | 89
| rowspan=2 style="text-align:right" | 138
| rowspan=2|227.0277521(26)
| rowspan=2|21.772(3) y
|  (98.61%)
| 227Th
| rowspan=2|3/2−
| rowspan=2|TraceIntermediate decay product of 235U
|-
|  (1.38%)
| 223Fr
|-
| 228Ac
| Mesothorium 2
| style="text-align:right" | 89
| style="text-align:right" | 139
| 228.0310211(27)
| 6.13(2) h
| 
| 228Th
| 3+
| TraceIntermediate decay product of 232Th
|-
| 229Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 140
| 229.03302(4)
| 62.7(5) min
| 
| 229Th
| (3/2+)
|
|-
| 230Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 141
| 230.03629(32)
| 122(3) s
| 
| 230Th
| (1+)
|
|-
| 231Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 142
| 231.03856(11)
| 7.5(1) min
| 
| 231Th
| (1/2+)
|
|-
| 232Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 143
| 232.04203(11)
| 119(5) s
| 
| 232Th
| (1+)
|
|-
| 233Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 144
| 233.04455(32)#
| 145(10) s
| 
| 233Th
| (1/2+)
|
|-
| 234Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 145
| 234.04842(43)#
| 44(7) s
| 
| 234Th
|
|
|-
| 235Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 146
| 235.05123(38)#
| 40# s
| 
| 235Th
| 1/2+#
|
|-
| 236Ac
|
| style="text-align:right" | 89
| style="text-align:right" | 147
| 236.05530(54)#
| 2# min
| 
| 236Th
|
|
|}

 参考文獻 

 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 , Nuc. Phys. A 729, pp. 3-128 (2003).
 National Nuclear Data Center, Brookhaven National Laboratory. Information extracted from the 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.

Ac
Category:锕
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