Английская Википедия:Isotopes of berkelium
Шаблон:Short description Шаблон:Infobox berkelium isotopes Berkelium (97Bk) is an artificial element, and thus a standard atomic weight cannot be given. Like all artificial elements, it has no stable isotopes. The first isotope to be synthesized was 243Bk in 1949. There are 20 known radioisotopes, from 230Bk and 233Bk to 253Bk (with the exception of 235Bk and 237Bk), and 6 nuclear isomers. The longest-lived isotope is 247Bk with a half-life of 1,380 years.
List of isotopes
Шаблон:Isotopes table |- | 230Bk[1] | style="text-align:right" | 97 | style="text-align:right" | 133 | | ~0.46 s | α | 226Am | |- | 233Bk[2] | style="text-align:right" | 97 | style="text-align:right" | 136 | | Шаблон:Val | α | 229Am | 3/2-# |- | rowspan=3|234Bk[3] | rowspan=3 style="text-align:right" | 97 | rowspan=3 style="text-align:right" | 137 | rowspan=3| | rowspan=3|Шаблон:Val | β+ | 234Cm | rowspan=3|3-# |- | β+, SF | (various) |- | α | 230Am |- | rowspan=2|236Bk[4] | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 139 | rowspan=2|236.05733(43)# | rowspan=2|Шаблон:Val | β+ (96%) | 236Cm | rowspan=2|4+# |- | β+, SF (4%) | (various) |- | rowspan=3|238Bk | rowspan=3 style="text-align:right" | 97 | rowspan=3 style="text-align:right" | 141 | rowspan=3|238.05828(31)# | rowspan=3|2.40(8) min | β+ | 238Cm | rowspan=3| 1# |- | β+, SF (0.048%) | (various) |- | α (rare) | 234Am |- | rowspan=3|239Bk[5] | rowspan=3 style="text-align:right" | 97 | rowspan=3 style="text-align:right" | 142 | rowspan=3|239.05828(25)# | rowspan=3|100# s | β+ (>99%) | 239Cm | rowspan=3|(7/2+) |- | α (<1%) | 235Am |- | SF (<1%) | (various) |- | rowspan=3|240Bk | rowspan=3 style="text-align:right" | 97 | rowspan=3 style="text-align:right" | 143 | rowspan=3|240.05976(16)# | rowspan=3|4.8(8) min | β+ | 240Cm | rowspan=3|7-# |- | β+, SF (0.002%) | (various) |- | α (rare) | 236Am |- | rowspan=2|241Bk[6] | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 144 | rowspan=2|241.06023(22)# | rowspan=2|4.6(4) min | β+ | 241Cm | rowspan=2|(7/2+) |- | α (rare) | 237Am |- | rowspan=2|242Bk | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 145 | rowspan=2|242.06198(22)# | rowspan=2|7.0(13) min | β+ | 242Cm | rowspan=2|2−# |- | β+, SF (<3×10−5%) | (various) |- | style="text-indent:1em" | 242mBk | colspan="3" style="text-indent:2em" | 200(200)# keV | 600(100) ns | SF | (various) | |- | rowspan=2|243Bk | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 146 | rowspan=2|243.063008(5) | rowspan=2|4.5(2) h | β+ (99.85%) | 243Cm | rowspan=2|(3/2−) |- | α (.15%) | 239Am |- | rowspan=2|244Bk | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 147 | rowspan=2|244.065181(16) | rowspan=2|4.35(15) h | β+ (99.99%) | 244Cm | rowspan=2|(4−)# |- | α (.006%) | 240Am |- | rowspan=2|245Bk | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 148 | rowspan=2|245.0663616(25) | rowspan=2|4.94(3) d | EC (99.88%) | 245Cm | rowspan=2|3/2− |- | α (.12%) | 241Am |- | rowspan=2|246Bk | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 149 | rowspan=2|246.06867(6) | rowspan=2|1.80(2) d | β+ (99.8%) | 246Cm | rowspan=2|2(−) |- | α (.2%) | 242Am |- | rowspan=2|247Bk | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 150 | rowspan=2|247.070307(6) | rowspan=2|1.38(25)×103 y | α | 243Am | rowspan=2|(3/2−) |- | SF (rare) | (various) |- | 248Bk | style="text-align:right" | 97 | style="text-align:right" | 151 | 248.07309(8)# | >300 y[7] | α | 244Am | 6+# |- | style="text-indent:1em" | 248mBk | colspan="3" style="text-indent:2em" | 30(70)# keV | 23.7(2) h | β− | 248Cf | 1(−) |- | rowspan=3|249Bk[n 1] | rowspan=3 style="text-align:right" | 97 | rowspan=3 style="text-align:right" | 152 | rowspan=3|249.0749867(28) | rowspan=3|330(4) d | β− | 249Cf | rowspan=3|7/2+ |- | α (.00145%) | 245Am |- | SF (4.7×10−8%) | (various) |- | style="text-indent:1em" | 249mBk | colspan="3" style="text-indent:2em" | 8.80(10) keV | 300 μs | IT | 249Bk | (3/2−) |- | 250Bk | style="text-align:right" | 97 | style="text-align:right" | 153 | 250.078317(4) | 3.212(5) h | β− | 250Cf | 2− |- | style="text-indent:1em" | 250m1Bk | colspan="3" style="text-indent:2em" | 35.59(5) keV | 29(1) μs | IT | 250Bk | (4+) |- | style="text-indent:1em" | 250m2Bk | colspan="3" style="text-indent:2em" | 84.1(21) keV | 213(8) μs | | | (7+) |- | rowspan=2|251Bk | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 154 | rowspan=2|251.080760(12) | rowspan=2|55.6(11) min | β− | 251Cf | rowspan=2|(3/2−)# |- | α (10−5%) | 247Am |- | style="text-indent:1em" | 251mBk | colspan="3" style="text-indent:2em" | 35.5(13) keV | 58(4) μs | IT | 251Bk | (7/2+)# |- | rowspan=2|252Bk | rowspan=2 style="text-align:right" | 97 | rowspan=2 style="text-align:right" | 155 | rowspan=2|252.08431(22)# | rowspan=2|1.8(5) min | β− | 252Cf | rowspan=2| |- | α | 248Am |- | 253Bk | style="text-align:right" | 97 | style="text-align:right" | 156 | 253.08688(39)# | 10# min | β− | 253Cf | Шаблон:Isotopes table/footer
Actinides vs fission products
Шаблон:Actinides vs fission products
See also
References
- Isotope masses from:
- Half-life, spin, and isomer data selected from the following sources.
Шаблон:Navbox element isotopes
Ошибка цитирования Для существующих тегов <ref> группы «n» не найдено соответствующего тега <references group="n"/>
