单词 | californium |
释义 | californiumn. A transuranic radioactive element; symbol Cf; atomic number 98. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > californium > [noun] californium1950 Cf1950 1950 in Amer. Speech (1951) 26 291/2 Scientists have created a new element—Californium—carrying the heaviest atom ever known, it was announced Friday. 1954 Sci. News 32 109 Through the absorption of 13 successive neutrons and 4 emissions of electrons (beta decay), it [sc. plutonium-239] was converted into californium-252, which was separated chemically. 1969 Times 22 Apr. 6/6 Element 104 has successfully been synthesized by bombarding the artificial element californium. This entry has not yet been fully updated (first published 1972; most recently modified version published online March 2018). < |
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