Bẹ́rkẹ́líọ̀m tabi Berkelium je apilese alasopapo to ni ami-idamo Bk ati nomba atomu 97. Gege bi apilese onide alagbararadio ninu eseese aktinidi, berkelium koko je sisopapo nipa didigbolu americium pelu awon igbonwo alpha (awon ioni helium), o si je sisoloruko fun Yunifasiti Kalifornia ni Berkeley. Berkelium ni apilese teyinuraniom karun to je sisopapo. Kovács, Attila; Dau, Phuong D.; Marçalo, Joaquim; Gibson, John K. (2018). "Pentavalent Curium, Berkelium, and Californium in Nitrate Complexes: Extending Actinide Chemistry and Oxidation States". Inorg. Chem. (American Chemical Society) 57 (15): 9453–9467. doi:10.1021/acs.inorgchem.8b01450. PMID 30040397.