X
Well attestedNamed from the place

californium

noun · first attested 1950

A magazine editorial mocked the name within months, and the discoverers had a ready answer.

Synthetic radioactive actinide element 98, symbol Cf, a strong neutron emitter used in reactor start-up sources and portable neutron probes.

California·United States

37.0000°N -120.0000°W · Q99

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Named from the place
Confidence
Well attestedThe place link is the standard scholarly account.
Attested
1950
Part of speech
noun

Explanations here are written for this atlas. Dictionary text is not copied; the sources are linked so the claim can be checked.

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    California

  2. In English

    californium

The entry

Thompson, Street, Ghiorso and Seaborg made californium in February 1950 by bombarding curium with alpha particles. The New Yorker suggested the Berkeley group should have called elements 97 and 98 universitium and ofium, so that the sequence spelled out university of california. Seaborg replied that they had considered it and declined, in case chemists in New York later found two elements and named them newium and yorkium.

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United States

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