element 104の例文

• Element 104 : dubnium; changed from rutherfordium ( or kurchatovium ).
• The chemical element rutherfordium ( element 104 ) was named after him in 1997.
• His job was to design and purify targets that would be used to discover elements 104 and 105.
• He also proposed the transactinide series ranging from element 104 to 120 and the superactinide series approximately spanning elements 121 to 155.
• The names of elements 104 through 108 have been in dispute for years, mostly because of disagreements over who discovered them, says Ghiorso.
• In 1997, as part of a compromise involving elements 104 to 108, the name "'seaborgium "'for element 106 was recognized internationally.
• Element 104 would retain the American name rutherfordium, after Ernest Rutherford, the Nobel Prize-winning atomic physicist from New Zealand who discovered alpha, beta and gamma rays.
• In the Transfermium Wars element naming controversy, the USSR's proposed name for element 104 was " kurchatovium ", Ku, in honor of Kurchatov . Element 104 is now known as rutherfordium.
• In the Transfermium Wars element naming controversy, the USSR's proposed name for element 104 was " kurchatovium ", Ku, in honor of Kurchatov . Element 104 is now known as rutherfordium.
• Adding insult to injury, in the view of the Berkeley group, the international union proposed naming Element 104 dubnium, recognizing achievements in nuclear physics by the Joint Institute for Nuclear Research at Dubna, Russia.
• Elements 104 to 112, rutherfordium through copernicium, form the 6d series of transition elements : for elements 104 108 and 112, experimental evidence shows them to behave as expected for their position in the periodic table.
• In 1992, the IUPAP Transfermium Working Group ( TWG ) assessed the claims of discovery and concluded that both teams provided contemporaneous evidence to the synthesis of element 104 and that credit should be shared between the two groups.
• All of the elements up to einsteinium, element 99, have been checked except for astatine and francium, and fluorine is also known to form compounds with mendelevium, element 101, rutherfordium, element 104, and seaborgium, element 106.
• Chemistry Nobel Prize winner Glenn T . Seaborg who first proposed the actinide concept which led to the acceptance of the actinide series also proposed the existence of a transactinide series ranging from element 104 to 121 and a superactinide series approximately spanning elements 122 to 153.
• The names for the chemical elements 104 to 106 were the subject of a major controversy starting in the 1960s, described by some nuclear chemists as the "'Transfermium Wars "'because it concerned the elements following fermium ( element 100 ) on the periodic table.
• In 1997, IUPAC decided to give dubnium its current name honoring the city of Dubna where the Russian team made their discoveries since American-chosen names had already been used for many existing synthetic elements, while the name " rutherfordium " ( chosen by the American team ) was accepted for element 104.
• 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 ).
• Thus, in September 1994, IUPAC recommended a set of names in which the names proposed by the three laboratories ( the third being the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt, Germany ) with competing claims to the discovery for elements 104 to 109 were shifted to various other elements, in which " rutherfordium " ( Rf ), the Berkeley proposal for element 104, was shifted to element 106, with " seaborgium " being dropped entirely as a name.
• Thus, in September 1994, IUPAC recommended a set of names in which the names proposed by the three laboratories ( the third being the GSI Helmholtz Centre for Heavy Ion Research in Darmstadt, Germany ) with competing claims to the discovery for elements 104 to 109 were shifted to various other elements, in which " rutherfordium " ( Rf ), the Berkeley proposal for element 104, was shifted to element 106, with " seaborgium " being dropped entirely as a name.