A synthetic chemical element with atomic number 98, named after California and the University of California where it was first created in 1950.
From California plus the Latin suffix -ium, the standard ending for chemical elements. Scientists named it californium to honor the University of California's cyclotron facility where it was first synthesized.
This element is named after a place where it was made, not where it was found—making californium unique among elements in being born from human science rather than nature, a radioactive monument to Cold War physics labs.
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