| LC control no. | sh2012003555 |
|---|---|
| Topical heading | Moscovium |
| Variant(s) | Eka-bismuth Ununpentium |
| See also | Superheavy elements |
| Found in | Work cat.: Chemical identification of a long-lived isotope of dubnium, a descendant of element 115, 2006: p. 1 (Element 115) Aldridge, S. Ununquadium, ununtrium, ununpentium, ununhexium, ununseptium, and ununoctium, 2012. Wikipedia, Aug. 31, 2012 (Ununpentium is the temporary name of a synthetic superheavy element in the periodic table that has the temporary symbol Uup and has the atomic number 115. It is placed as the heaviest member of group 15 (VA) although a sufficiently stable isotope is not known at this time that would allow chemical experiments to confirm its position as a heavier homologue to bismuth. It was first observed in 2003 and about 50 atoms of ununpentium have been synthesized to date, with about 25 direct decays of the parent element having been detected. Element category: unknown, probably a post-transition metal. Ununpentium is historically known as eka-bismuth. Ununpentium is a temporary IUPAC systematic element name derived from the digits 115) The element ununpentium, via It's elemental : the periodic table of elements website, Aug. 31, 2012 (Ununpentium; Uup; Atomic Number: 115; Atomic Weight: 289; Phase at Room Temperature: Expected to be a Solid; Element Classification: Metal; Period Number: 7; Group Number: 15; Group Name: Pnictogen; radioactive and artificially produced; temporary name that means one-one-five; On February 2, 2004, 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 ununpentium. In experiments performed between July 14, 2003 and August 10, 2003, atoms of americium-243 were bombarded with ions of calcium-48 using a device called a cyclotron. This produced one atom of ununpentium-287 and three atoms of ununpentium-288. All four atoms quickly decayed into other elements. Ununpentium's most stable isotope, ununpentium-289, has a half-life of about 320 milliseconds. It decays into ununtrium-285 through alpha decay.) WebElements periodic table on the web, Aug. 31, 2012 (Ununpentium; Uup; Atomic number: 115; Group in periodic table: 15; Group name: Pnictogen; Period in periodic table: 7 Block in periodic table: p-block; Colour: unknown, but probably metallic and silvery white or grey in appearance; Classification: Metallic. currently, the identification of element 115 is yet to be confirmed by IUPAC, but the experiments leading to element 115 are now published in a prestigious peer reviewed journal. As only about four atoms of element 115 have ever been made (through nuclear reactions involving fusing calcium nuclei with americium nuclei) isolation of an observable quantity has never been achieved, and may well never be.) June 20, 2016 (Moscovium; Mc; On 8 June 2016 IUPAC announced the new name moscovium (symbol Mc) for element 115 in place of the temporary systematic name ununpentium (Uup)) The element moscovium, via It's elemental : the periodic table of elements website, June 20, 2016 (Moscovium; Mc; Atomic Number: 115; Atomic Weight: 289) IUPAC is naming the four new elements nihonium, moscovium, tennessine, and oganesson, 8 June 2016, via International Union of Pure and Applied Chemistry website, viewed June 20, 2016 (Moscovium and symbol Mc, for the element 115; For the element with atomic number 115 the name proposed is moscovium with the symbol Mc; Moscovium is in recognition of the Moscow region and honors the ancient Russian land that is the home of the Joint Institute for Nuclear Research, where the discovery experiments were conducted using the Dubna Gas-Filled Recoil Separator in combination with the heavy ion accelerator capabilities of the Flerov Laboratory of Nuclear Reactions) |
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