单词 | nobelium |
释义 | nobeliumn. Chemistry. An artificially produced transuranic element, atomic no. 102, whose longest-lived isotope has a half-life of about three minutes. Symbol No. ΘΚΠ the world > matter > chemistry > elements and compounds > metals > specific elements > nobelium > [noun] No1957 nobelium1957 1957 P. R. Fields et al. in Physical Rev. 107 1461/2 We suggest the name nobelium, symbol No, for the new element in recognition of Alfred Nobel's support of scientific research and after the institute where the work was done. 1957 Times 10 Sept. 11/1 He compared the building up of new elements beyond uranium to the ascent of Everest... In the making of nobelium, the advanced camp had been curium 244, made in the materials testing reactor in Idaho, United States. 1974 Encycl. Brit. Micropædia VII. 368/2 Radiochemists have shown nobelium to exist in aqueous solution in both the +2 and +3 oxidation states. 1999 Physics Today Feb. 21/1 (caption) The Kα and Kβ rays characteristic of nobelium are visible. This entry has been updated (OED Third Edition, December 2003; most recently modified version published online March 2022). < n.1957 |
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