Back Isotope van berkelium Afrikaans Isòtops del berkeli Catalan Izotopy berkelia Czech Беркли изотопĕсем CV Anexo:Isótopos de berkelio Spanish ایزوتوپهای برکلیم Persian Isotopes du berkélium French A berkélium izotópjai Hungarian Isotop berkelium ID バークリウムの同位体 Japanese
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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 twenty known radioisotopes, from 233Bk and 233Bk to 253Bk (except 235Bk and 237Bk), and six nuclear isomers. The longest-lived isotope is 247Bk with a half-life of 1,380 years.
- ^ Kondev, F. G.; Wang, M.; Huang, W. J.; Naimi, S.; Audi, G. (2021). "The NUBASE2020 evaluation of nuclear properties" (PDF). Chinese Physics C. 45 (3): 030001. doi:10.1088/1674-1137/abddae.
- ^ Milsted, J.; Friedman, A. M.; Stevens, C. M. (1965). "The alpha half-life of berkelium-247; a new long-lived isomer of berkelium-248". Nuclear Physics. 71 (2): 299. doi:10.1016/0029-5582(65)90719-4.
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