element 105s造句
例句与造句
- The German group at the Gesellschaft f黵 Schwerionenforschung ( GSI ) in Darmstadt, who had ( undisputedly ) discovered elements 107 to 109, were dragged into the controversy when the Commission suggested that the name " hahnium ", proposed for element 105 by the Americans, be used for GSI's element 108 instead.
- Finally, IUPAC rescinded these previous compromises and made a final, new recommendation in August 1997, in which the American and German proposals for elements 104 to 109 were all adopted, including " seaborgium " for element 106, with the single exception of element 105, named " dubnium " to recognise the contributions of the Dubna team to the experimental procedures of transactinide synthesis.
- Subject to confirmation by the union's members at a meeting in Geneva next August, these will be the names of the six new elements : Element 104, Rutherfordium ( symbol Rf ); Element 105, Dubnium ( symbol Db ); Element 106, Seaborgium ( symbol Sg ); Element 107, Bohrium ( symbol Bh ); Element 108, Hassium ( symbol Hs ), and Element 109, Meitnerium ( symbol Mt ).
- For element 105, they proposed the name " joliotium " ( Jl ), after the French physicist Fr閐閞ic Joliot-Curie, a significant contributor to the development of nuclear physics and chemistry; this name was originally proposed by the Soviet team for element 102, which by then had long been called nobelium . ( The name " nielsbohrium " for the element 107 transformed to " bohrium " to conform the practice set by all then-current elements . ) These names were to be accepted on a Council meeting in 1995.
- :The problem is that many of the newer elements only exist in a laboratory for a fraction of a second, so we don't know their properties in much detail, and it really isn't all that useful to know about elements that only exist for a fraction of a second in a lab, in any case . ( Although an isotope of chemical element 105, dubnium-268, has a half-life of 15-29 hours, which isn't bad . ) There may be some more stable elements out there around element 120, though, so we might want to update the table if we can synthesize those.
- It's difficult to find element 105s in a sentence. 用element 105s造句挺难的
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