Изотопи на берклиумот

Берклиумот (<sub>97</sub>Bk) е вештачки елемент и затоа не може да се даде стандардна атомска тежина. Како и сите вештачки елементи, тој нема стабилни изотопи. Првиот изотоп што беше синтетизиран бил <sup>243</sup>Bk во 1949 година. Постојат дваесет познати радиоизотопи, од <sup>233</sup>Bk до <sup>253</sup>Bk (освен <sup>235</sup>Bk и <sup>237</sup>Bk) и шест јадрени изомери. Најдолговечниот изотоп е <sup>247</sup>Bk со време на полураспад од 1.380 години.
1 Список на изотопи
<sup>233</sup>Bk, 97, 136, 233,05665(25)#, 40(30) с, α, <sup>229</sup>Am, 3/2-#
β<sup>+</sup>?, <sup>233</sup>Cm
<sup>234</sup>Bk, 97, 137, 234,05732(16)#, 20(5) с, α (>80%), <sup>230</sup>Am, 3-#
β<sup>+</sup> (<20%), <sup>234</sup>Cm
β<sup>+</sup>, СЦ?, (различни)
<sup>236</sup>Bk, 97, 139, 236,05748(39)#, 26(10) с, β<sup>+</sup> (99,96%), <sup>236</sup>Cm, 4+#
β<sup>+</sup>, SF (0,04%), (различни)
α?, <sup>232</sup>Am
<sup>238</sup>Bk, 97, 141, 238,05820(28)#, 2,40(8) мин, β<sup>+</sup> (99,95%), <sup>238</sup>Cm, 1#
β<sup>+</sup>, SF (0,048%), (различни)
α?, <sup>234</sup>Am
<sup>239</sup>Bk, 97, 142, 239,05824(22)#, 100# с, β<sup>+</sup>, <sup>239</sup>Cm, (7/2+)
α?, <sup>235</sup>Am
SF?, (различни)
<sup>240</sup>Bk, 97, 143, 240,05976(16)#, 4,8(8) мин, β<sup>+</sup>?, <sup>240</sup>Cm, 7−#
β<sup>+</sup>, SF (0,0020%), (различни)
α?, <sup>236</sup>Am
<sup>241</sup>Bk, 97, 144, 241,06010(18)#, 4,6(4) мин, β<sup>+</sup>?, <sup>241</sup>Cm, (7/2+)
α?, <sup>237</sup>Am
<sup>242</sup>Bk, 97, 145, 242,06198(22)#, 7,0(13) мин, β<sup>+</sup>, <sup>242</sup>Cm, 3+#
β<sup>+</sup>, SF (<3×10<sup>−5</sup>%), (различни)
α?, <sup>238</sup>Am
<sup>242m</sup>Bk, 2000(200)# keV, 600(100) нс, SF, (различни)
IT?, <sup>242</sup>Bk
<sup>243</sup>Bk, 97, 146, 243,0630059(49), 4,6(2) ч, β<sup>+</sup> (99,85%), <sup>243</sup>Cm, 3/2−
α (,15%), <sup>239</sup>Am
<sup>244</sup>Bk, 97, 147, 244,065179(15), 5,02(3) ч, β<sup>+</sup>?, <sup>244</sup>Cm, 4−
α (0,006%), <sup>240</sup>Am
<sup>244m</sup>Bk, 1500(500)# keV, 820(60) нс, SF, (различни)
IT?, <sup>244</sup>Bk
<sup>245</sup>Bk, 97, 148, 245,0663598(19), 4,95(3) д, EC (99,88%), <sup>245</sup>Cm, 3/2−
α (,12%), <sup>241</sup>Am
<sup>246</sup>Bk, 97, 149, 246,068671(64), 1,80(2) д, β<sup>+</sup>, <sup>246</sup>Cm, 2(−)
α?, <sup>242</sup>Am
<sup>247</sup>Bk, 97, 150, 247,0703059(56), 1,38(25)×10<sup>3</sup> г, α, <sup>243</sup>Am, 3/2−
SF?, (различни)
<sup>248</sup>Bk, 97, 151, 248,073142(54), >9 г, α?, <sup>244</sup>Am, 6+#
EC?, <sup>248</sup>Cm
<sup>248m</sup>Bk<ref на основната состојба и изомерот е неизвесен., −20(50) keV, 23,7(2) ч, β<sup>−</sup> (70%), <sup>248</sup>Cf, 1(−)
EC (30%), <sup>248</sup>Cm
α?, <sup>244</sup>Am
<sup>249</sup>Bk, 97, 152, 249,0749831(13), 327,2(3) д, β<sup>−</sup>, <sup>249</sup>Cf, 7/2+
α (,00145%), <sup>245</sup>Am
SF (4,7×10<sup>−8</sup>%), (различни)
<sup>249m</sup>Bk, 8,777(14) keV, 300 μs, IT, <sup>249</sup>Bk, 3/2−
<sup>250</sup>Bk, 97, 153, 250,0783172(31), 3,212(5) ч, β<sup>−</sup>, <sup>250</sup>Cf, 2−
<sup>250m1</sup>Bk, 35,59(10) keV, 29(1) μs, IT, <sup>250</sup>Bk, 4+
<sup>250m2</sup>Bk, 85,6(16) keV, 213(8) μs, IT, <sup>250</sup>Bk, 7+
<sup>251</sup>Bk, 97, 154, 251,080761(12), 55,6(11) мин, β<sup>−</sup>, <sup>251</sup>Cf, (3/2−)
<sup>251m</sup>Bk, 35,5(13) keV, 58(4) μs, IT, <sup>251</sup>Bk, (7/2+)
<sup>252</sup>Bk, 97, 155, 252,08431(22)#, 1,8(5) мин, β<sup>−</sup>?, <sup>252</sup>Cf
α?, <sup>248</sup>Am
<sup>253</sup>Bk, 97, 156, 253,08688(39)#, 60# мин, β<sup>−</sup>?, <sup>253</sup>Cf, 3/2-#
2 Наводи
* Isotope masses from:
*** Half-life, spin, and isomer data selected from the following sources.
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