锫有20种同位素和6种同核异构体，全部都有放射性，其中最稳定的是半衰期1380年的247Bk。
更多信息 符號, Z ...
| 符號
|
Z
|
N
|
同位素質量（u）
[n 1][n 2]
|
半衰期
[n 1][n 2]
|
衰變
方式[2]
|
衰變
產物
|
原子核
自旋[n 1]
|
| 激發能量[n 1][n 2]
|
| 236Bk[3]
|
97
|
139
|
236.05733(43)#
|
7001220000000000000♠22+13
−6 s
|
β+（96%）
|
236Cm
|
4+#
|
| β+, SF（4%）
|
(various)
|
| 238Bk
|
97
|
141
|
238.05828(31)#
|
2.40(8) min
|
α
|
234Am
|
|
| β+, SF (.048%)
|
(various)
|
| β+ （不常見）
|
238Cm
|
| 239Bk
|
97
|
142
|
239.05828(25)#
|
3# min
|
α
|
235Am
|
7/2+#
|
| β+
|
239Cm
|
| 240Bk
|
97
|
143
|
240.05976(16)#
|
4.8(8) min
|
β+ (90%)
|
240Cm
|
|
| α (10%)
|
236Am
|
| β+, SF (.002%)
|
(various)
|
| 241Bk
|
97
|
144
|
241.06023(22)#
|
4.6(4) min
|
α
|
237Am
|
(7/2+)
|
| β+ （不常見）
|
241Cm
|
| 242Bk
|
97
|
145
|
242.06198(22)#
|
7.0(13) min
|
β+ (99.99%)
|
242Cm
|
2−#
|
| β+, SF (3×10−4%)
|
(various)
|
| 242mBk
|
200(200)# keV
|
600(100) ns
|
|
|
|
| 243Bk
|
97
|
146
|
243.063008(5)
|
4.5(2) h
|
β+ (99.85%)
|
243Cm
|
(3/2−)
|
| α (.15%)
|
239Am
|
| 244Bk
|
97
|
147
|
244.065181(16)
|
4.35(15) h
|
β+ (99.99%)
|
244Cm
|
(4−)#
|
| α (.006%)
|
240Am
|
| 245Bk
|
97
|
148
|
245.0663616(25)
|
4.94(3) d
|
ε (99.88%)
|
245Cm
|
3/2−
|
| α (.12%)
|
241Am
|
| 246Bk
|
97
|
149
|
246.06867(6)
|
1.80(2) d
|
β+ (99.8%)
|
246Cm
|
2(−)
|
| α (.2%)
|
242Am
|
| 247Bk
|
97
|
150
|
247.070307(6)
|
1.38(25)×103 y
|
α
|
243Am
|
(3/2−)
|
| SF （不常見）
|
(various)
|
| 248Bk
|
97
|
151
|
248.07309(8)#
|
>300 y[1]
|
α
|
244Am
|
6+#
|
| 248mBk
|
30(70)# keV
|
23.7(2) h
|
|
|
1(−)
|
| 249Bk[n 3]
|
97
|
152
|
249.0749867(28)
|
330(4) d
|
β−
|
249Cf
|
7/2+
|
| α (.00145%)
|
245Am
|
| SF (4.7×10−8%)
|
(various)
|
| 249mBk
|
8.80(10) keV
|
300 µs
|
|
|
(3/2−)
|
| 250Bk
|
97
|
153
|
250.078317(4)
|
3.212(5) h
|
β−
|
250Cf
|
2−
|
| 250m1Bk
|
35.59(5) keV
|
29(1) µs
|
|
|
(4+)
|
| 250m2Bk
|
84.1(21) keV
|
213(8) µs
|
|
|
(7+)
|
| 251Bk
|
97
|
154
|
251.080760(12)
|
55.6(11) min
|
β−
|
251Cf
|
(3/2−)#
|
| α (10−5%)
|
247Am
|
| 251mBk
|
35.5(13) keV
|
58(4) µs
|
|
|
(7/2+)#
|
| 252Bk
|
97
|
155
|
252.08431(22)#
|
1.8(5) min
|
β−
|
252Cf
|
|
| α
|
248Am
|
| 253Bk
|
97
|
156
|
253.08688(39)#
|
10# min
|
β−
|
253Cf
|
|
关闭
畫上#號的數據代表沒有經過實驗的証明，僅為理論推測。
Milsted, J.; Friedman, A. M.; Stevens, C. M. The alpha half-life of berkelium-247; a new long-lived isomer of berkelium-248. Nuclear Physics. 1965, 71 (2): 299. doi:10.1016/0029-5582(65)90719-4.
- 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.
- 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.
