| 单词 |
californium |
| 释义 |
californium|kælɪˈfɔːnɪəm| [f. the University of California, where it was discovered, + -ium.] A transuranic radioactive element; symbol Cf; atomic number 98.
1950in Amer. Speech (1951) XXVI. 291/2 Scientists have created a new element—Californium—carrying the heaviest atom ever known, it was announced Friday. 1954Sci. News XXXII. 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. 1969Times 22 Apr. 6/6 Element 104 has successfully been synthesized by bombarding the artificial element californium. |
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