The Library of Congress > LCCN Permalink

View this record in:  MARCXML | LC Authorities & Vocabularies


LC control no.sh2012003543
Topical headingLivermorium
    Browse this term in  LC Authorities  or the  LC Catalog
See alsoChalcogens
    Browse this term in  LC Authorities
Superheavy elements
    Browse this term in  LC Authorities
Found inWork cat.: Aldridge, S. Ununquadium, ununtrium, ununpentium, ununhexium, ununseptium, and ununoctium, 2012.
Beck, J. Two new super-heavy elements added to the periodic table, 2011, via Popsci website, viewed Aug. 31, 2012 (The periodic table of the elements now officially has two new members, its heaviest ever. The new elements, 114 and 116 weigh 289 and 292 atomic mass units, respectively. Elements 114 and 116 currently have placeholder names -- ununquadium and ununhexium. Their Russian discoverers at Dubna Joint Institute for Nuclear Research have proposed to name 114 flerovium for Soviet nuclear physicist Georgy Flyorov and to name 116 moscovium after the region Moscow Oblast.)
Mann, A. 2 new elements named on periodic table, 2012, via Wired science website, viewed Aug. 31, 2012 (two new residents of the period table of elements: Flerovium and Livermorium; The International Union of Pure and Applied Chemistry officially approved names for the elements - which sit at slot 114 and 116, respectively - on May 31. They have until now gone by the temporary monikers ununquadium and ununhexium. Both elements are man-made, having first been synthesized at the Joint Institute of Nuclear Research in Dubna, Russia, in 1998 and 2000; Livermorium's symbol will be Lv)
Maugh, T.H. Livermorium and flerovium : new names for heavy elements, via Los Angeles times, June 1, 2012, viewed on Aug. 31, 2012 (The super-heavy elements 114 and 116 have officially been recognized by the International Union of Pure and Applied Chemistry, the official arbiter of chemical names, and have been named in honor of the U.S. and Russian institutions where they were jointly discovered. Element 116 has been named livermorium with the symbol Lv in honor of the Lawrence Livermore National Laboratory and the nearby city of Livermore.)
Wikipedia, Aug. 31, 2012 (Livermorium (formerly ununhexium) is the synthetic superheavy element with the symbol Lv (formerly Uuh) and atomic number 116. The name was adopted by IUPAC on May 31, 2012. It is placed as the heaviest member of group 16 (VIA) although a sufficiently stable isotope is not known at this time to allow chemical experiments to confirm its position as a heavier homologue to polonium. It was first detected in 2000. Since then, about 35 atoms of livermorium have been produced, either directly or as a decay product of ununoctium, belonging to the four neighbouring isotopes with masses 290-293. The most stable isotope known is livermorium-293 with a half-life of ~60 ms. Livermorium is historically known as eka-polonium. Ununhexium (Uuh) was the temporary IUPAC systematic element name. Element category: unknown; probably a post-transition metal)
The element livermorium, via It's elemental : the periodic table of elements website, Aug. 31, 2012 (Livermorium; Lv; Atomic Number: 116; Atomic Weight: 291; Element Classification: Metal; Period Number: 7; Group Number: 16; Group Name: Chalcogen; radioactive and artificially produced; On December 6, 2000, scientists working at the Joint Institute for Nuclear Research in Dubna, Russia, along with scientists from the U.S. Department of Energy's Lawrence Livermore National Laboratory, announced the creation of livermorium. They produced livermorium by bombarding atoms of curium-248 with ions of calcium-48. This produced livermorium-292, an isotope with a half-life of about 0.6 milliseconds (0.0006 seconds), and four free neutrons. Livermorium's most stable isotope, livermorium-291, has a half-life of about 18 milliseconds. It decays into flerovium-287 through alpha decay.)