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Encyclopedia > Ununhexium
116 ununpentiumununhexiumununseptium
Po

Uuh

(Uhh)
General
Name, Symbol, Number ununhexium, Uuh, 116
Chemical series presumably poor metals
Group, Period, Block 16, 7, p
Appearance unknown, probably silvery
white or metallic gray
Atomic mass (302) g/mol
Electron configuration perhaps [Rn] 5f14 6d10 7s2 7p4
(guess based on polonium)
Electrons per shell 2, 8, 18, 32, 32, 18, 6
Phase presumably a solid
CAS registry number 54100-71-9
References

Ununhexium (IPA: /ˌjunʌnˈhɛksiəm/) is the temporary name of a synthetic superheavy element in the periodic table that has the temporary symbol Uuh and has the atomic number 116. Some research has referred to it as "eka-polonium". It is believed to be a brittle metal melting at around 300-400 degrees and vapourising readily. General Name, Symbol, Number ununpentium, Uup, 115 Chemical series presumably poor metals Group, Period, Block 15, 7, p Appearance unknown, probably silvery white or metallic gray Atomic mass (288) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s2 7p3 (guess based on bismuth) Electrons per shell 2, 8, 18, 32... General Name, Symbol, Number ununseptium, Uus, 117 Chemical series presumably halogens Group, Period, Block 17, 7, p Appearance unknown, probably dark metallic Atomic mass predicted, (310) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s2 7p5 (guess based on astatine) Electrons per shell 2, 8, 18, 32, 32, 18, 7... General Name, Symbol, Number polonium, Po, 84 Chemical series metalloids Group, Period, Block 16, 6, p Appearance silvery Atomic mass (209) g/mol Electron configuration [Xe] 4f14 5d10 6s2 6p4 Electrons per shell 2, 8, 18, 32, 18, 6 Physical properties Phase solid Density (near r. ... Image File history File links Download high resolution version (890x260, 21 KB) Image by Daniel Mayer and released under terms of the GNU FDL File links The following pages link to this file: Ununhexium User:Femto/elements e10 ... This is a standard display of the periodic table of elements. ... This extended periodic table was suggested by Glenn T. Seaborg in 1969. ... This is a list of chemical elements, sorted by name and color coded according to type of element. ... Categories: Chemical elements ... sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex sex... The poor metals or post-transition metals are the metallic elements of the p-block of the periodic table, occurring between the metalloids and the transition metals. ... A periodic table group is a vertical column in the periodic table of the chemical elements. ... In the periodic table of the elements, a period is a row of the table. ... A block of the periodic table of elements is a set of adjacent groups. ... The chalcogens are the name for the periodic table group 16 (old-style: VIB or VIA) in the periodic table. ... A period 7 element is one of the chemical elements in the seventh row (or period) of the periodic table of the elements. ... The p-block of the periodic table of elements consists of the last six groups. ... Color is an important part of the visual arts. ... The atomic mass of a chemical element is the mass of an atom at rest, most often expressed in unified atomic mass units. ... To help compare different orders of magnitude we list here masses between 60. ... Electron atomic and molecular orbitals In atomic physics and quantum chemistry, the electron configuration is the arrangement of electrons in an atom, molecule or other body. ... General Name, Symbol, Number radon, Rn, 86 Chemical series noble gases Group, Period, Block 18, 6, p Appearance colorless Atomic mass (222) g/mol Electron configuration [Xe] 4f14 5d10 6s2 6p6 Electrons per shell 2, 8, 18, 32, 18, 8 Physical properties Phase gas Density (0 °C, 101. ... General Name, Symbol, Number polonium, Po, 84 Chemical series metalloids Group, Period, Block 16, 6, p Appearance silvery Atomic mass (209) g/mol Electron configuration [Xe] 4f14 5d10 6s2 6p4 Electrons per shell 2, 8, 18, 32, 18, 6 Physical properties Phase solid Density (near r. ... Properties The electron is a lightweight fundamental subatomic particle that carries a negative electric charge. ... In atomic physics, an electron shell, also known as a main energy level, is a group of atomic orbitals with the same value of the principal quantum number n. ... In the physical sciences, a phase is a set of states of a macroscopic physical system that have relatively uniform chemical composition and physical properties (i. ... In jewelry, a solid gold piece is the alternative to gold-filled or gold-plated jewelry. ... CAS registry numbers are unique numerical identifiers for chemical compounds, polymers, biological sequences, mixtures and alloys. ... Recommended values for many properties of the elements, together with various references, are collected on these data pages. ... The International Phonetic Alphabet (IPA) is a system of phonetic notation devised by linguists to accurately and uniquely represent each of the wide variety of sounds (phones or phonemes) used in spoken human language. ... The chemical elements labelled as synthetic are unstable, with a half-life so short (ranging from a fraction of millisecond to a few million years) relative to the age of the Earth that any atoms of that element that may have been present when the Earth formed have long since... In chemistry, transuranium elements (also known as transuranic elements) are the chemical elements with atomic numbers greater than 92, the atomic number of Uranium. ... The periodic table of the chemical elements is a tabular method of displaying the chemical elements, first devised in 1869 by the Russian chemist Dmitri Mendeleev. ... When Dmitri Mendeleev proposed his periodic table, he noted gaps in the table, and predicted that as of yet unknown elements existed with properties appropriate to fill those gaps. ... General Name, Symbol, Number polonium, Po, 84 Chemical series metalloids Group, Period, Block 16, 6, p Appearance silvery Atomic mass (209) g/mol Electron configuration [Xe] 4f14 5d10 6s2 6p4 Electrons per shell 2, 8, 18, 32, 18, 6 Physical properties Phase solid Density (near r. ...

Contents

History

In 1999, researchers at Lawrence Berkeley National Laboratory announced the discovery of elements 116 and 118 (ununhexium and ununoctium), in a paper published in Physical Review Letters. The following year, they published a retraction after other researchers were unable to duplicate the results. In June 2002, the director of the lab announced that the original claim of the discovery of these two elements had been based on data fabricated by the principal author Victor Ninov. 1999 (MCMXCIX) was a common year starting on Friday, and was designated the International Year of Older Persons by the United Nations. ... The Berkeley Lab is perched on a hill overlooking the Berkeley central campus and San Francisco Bay. ... General Name, Symbol, Number ununoctium, Uuo, 118 Chemical series noble gases Group, Period, Block 18, 7, p Appearance unknown, probably colorless Atomic mass predicted, Uuo-293 293. ... General Name, Symbol, Number ununoctium, Uuo, 118 Chemical series noble gases Group, Period, Block 18, 7, p Appearance unknown, probably colorless Atomic mass predicted, Uuo-293 293. ... A retraction is a public statement that confirms that a previously made statement was incorrect, invalid, or morally wrong. ... For album titles with the same name, see 2002 (album). ... Victor Ninov was a researcher in the nuclear chemistry group at Lawrence Berkeley National Laboratory who was alleged to have fabricated the evidence used to claim the creation of ununoctium and ununhexium. ...


In January, 2001 the Joint Institute for Nuclear Research (Dubna, Russia) published results [1] that described the discovery in 2000 of decay of the isotope 292Uuh, which was produced in the reaction of 248Cm with 48Ca (curium and calcium, elements 96 and 20, respectively). It has a half-life of about 18 milliseconds (0.018 seconds) and decayed into 288Uuq (ununquadium, element 114). On May 11, 2001, the institute reported synthesizing a second atom, and that the properties confirmed a region of "enhanced" stability (see Island of stability). 2001: A Space Odyssey. ... The Joint Institute for Nuclear Research, JINR (Объединённый институт ядерных исследований, ОИЯИ in Russian) in Dubna, Moscow Oblast (120 km north of Moscow), Russia is an international research centre for nuclear sciences, involving around 1000 scientists from eighteen states (Armenia, Azerbaijan, Belarus, Bulgaria, Cuba, Czech Republic, Georgia, Kazakhstan, DPR Korea, Moldova, Mongolia, Poland,Romania, Russia... Dubna is a small city located in central Russia, in the Taldomsky district of Moscow Oblast, approximately 125 km north of Moscow, on the banks of the Volga river. ... This article is about the year 2000. ... General Name, Symbol, Number curium, Cm, 96 Chemical series actinides Group, Period, Block ?, 7, f Appearance silvery Atomic mass (247) g/mol Electron configuration [Rn] 5f7 6d1 7s2 Electrons per shell 2, 8, 18, 32, 25, 9, 2 Physical properties Phase solid Density (near r. ... General Name, Symbol, Number calcium, Ca, 20 Chemical series alkaline earth metals Group, Period, Block 2, 4, s Appearance silvery white Atomic mass 40. ... General Name, Symbol, Number curium, Cm, 96 Chemical series actinides Group, Period, Block ?, 7, f Appearance silvery Atomic mass (247) g/mol Electron configuration [Rn] 5f7 6d1 7s2 Electrons per shell 2, 8, 18, 32, 25, 9, 2 Physical properties Phase solid Density (near r. ... General Name, Symbol, Number calcium, Ca, 20 Chemical series alkaline earth metals Group, Period, Block 2, 4, s Appearance silvery white Atomic mass 40. ... General Name, Symbol, Number ununquadium, Uuq, 114 Chemical series presumably poor metals Group, Period, Block 14, 7, p Appearance unknown, probably silvery white or metallic gray Atomic mass (289) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s2 7p2 (guess based on lead) Electrons per shell 2, 8, 18, 32... General Name, Symbol, Number ununquadium, Uuq, 114 Chemical series presumably poor metals Group, Period, Block 14, 7, p Appearance unknown, probably silvery white or metallic gray Atomic mass (289) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s2 7p2 (guess based on lead) Electrons per shell 2, 8, 18, 32... May 11 is the 131st day of the year in the Gregorian Calendar (132nd in leap years). ... 2001: A Space Odyssey. ... 3-dimensional rendering of the theoretical Island of Stability. ...


In 2004 in the Joint Institute for Nuclear Research the synthesis of this element was confirmed by another method (the chemical identifying on final products of decay of element). 2004 (MMIV) was a leap year starting on Thursday of the Gregorian calendar. ... The Joint Institute for Nuclear Research, JINR (Объединённый институт ядерных исследований, ОИЯИ in Russian) in Dubna, Moscow Oblast (120 km north of Moscow), Russia is an international research centre for nuclear sciences, involving around 1000 scientists from eighteen states (Armenia, Azerbaijan, Belarus, Bulgaria, Cuba, Czech Republic, Georgia, Kazakhstan, DPR Korea, Moldova, Mongolia, Poland,Romania, Russia...


Ununhexium is a temporary IUPAC systematic element name. The International Union of Pure and Applied Chemistry (IUPAC) is an international non-governmental organization devoted to the advancement of chemistry. ... In chemistry, heavy transuranic elements receive a permanent name and symbol only after their discovery has been confirmed. ...


According to UFO conspiracy theorist Bob Lazar, Ununhexium is the "fuel" that is used to power UFOs. By irradiating the element ununpentium (Element 115 was made famous by Lazar), it's supposed to transform into ununhexium and give off anti-matter that is used to fuel certain flying saucers or extra-terrestrial spacecraft. [citation needed] To meet Wikipedias quality standards, this article or section may require cleanup. ... Bob Lazar at Los Alamos National Laboratory Robert Scott Lazar (born 26 January 1959) is a central (and highly controversial) figure in discussions about UFOs. ... General Name, Symbol, Number ununpentium, Uup, 115 Chemical series presumably poor metals Group, Period, Block 15, 7, p Appearance unknown, probably silvery white or metallic gray Atomic mass (288) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s2 7p3 (guess based on bismuth) Electrons per shell 2, 8, 18, 32... A UFO or Unidentified Flying Object is any real or apparent flying object which cannot be identified by the observer and which remains unidentified after investigation. ...


In October, 2006 it was announced that on three occasions californium-249 atoms had been bombarded with calcium-48 ions to produce ununoctium (element 118), which decayed to ununhexium within a millisecond[1]. If confirmed, the synthesis of element 116 will have been proven definitively. General Name, Symbol, Number calcium, Ca, 20 Chemical series alkaline earth metals Group, Period, Block 2, 4, s Appearance silvery white Atomic mass 40. ... General Name, Symbol, Number ununoctium, Uuo, 118 Chemical series noble gases Group, Period, Block 18, 7, p Appearance unknown, probably colorless Atomic mass predicted, Uuo-293 293. ...


See also

General Name, Symbol, Number ununpentium, Uup, 115 Chemical series presumably poor metals Group, Period, Block 15, 7, p Appearance unknown, probably silvery white or metallic gray Atomic mass (288) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s2 7p3 (guess based on bismuth) Electrons per shell 2, 8, 18, 32... General Name, Symbol, Number ununseptium, Uus, 117 Chemical series presumably halogens Group, Period, Block 17, 7, p Appearance unknown, probably dark metallic Atomic mass predicted, (310) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s2 7p5 (guess based on astatine) Electrons per shell 2, 8, 18, 32, 32, 18, 7... General Name, Symbol, Number ununoctium, Uuo, 118 Chemical series noble gases Group, Period, Block 18, 7, p Appearance unknown, probably colorless Atomic mass predicted, Uuo-293 293. ...

References

  1. ^ Phil Schewe and Ben Stein (17 October 2006). Elements 116 and 118 Are Discovered. Physics News Update. American Institute of Physics. Retrieved on 2006-10-20.
  • Y. T. Oganessian, et al., Observation of the decay of (292)116, Phys. Rev. C 63, 011301 (2001).

The American Institute of Physics (AIP) is a professional body representing American physicists and publishing physics related journals. ... 2006 (MMVI) is a common year starting on Sunday of the Gregorian calendar. ... October 20 is the 293rd day of the year (294th in leap years) in the Gregorian Calendar, with 72 days remaining. ...

External links

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  Results from FactBites:
 
Element 116 - MSN Encarta (458 words)
Ununhexium has never been found in nature but can be produced in the laboratory by nuclear fusion (a process in which a chemical element with larger atoms is produced by fusing together two smaller atoms of other elements).
They produced ununhexium by using a machine called a particle accelerator to accelerate calcium (Ca) atoms to a very high velocity and then smashing them into atoms of the element curium (Cm).
Ununhexium is a temporary name based on the element’s atomic number that uses Latin prefixes for the digits of the atomic number (un = 1, hex = 6) followed by the suffix -ium.
Article about "Ununhexium" in the English Wikipedia on 24-Apr-2004 (212 words)
Ununhexium is the temporary name of an unconfirmed synthetic superheavy element in the periodic table that has the temporary symbol Uuh and has the atomic number 116.
In June 2002, the director of the lab announced that the original claim of the discovery of these two elements had been based on data fabricated by the principal author Victor Ninov.
Ununhexium is a temporary IUPAC systematic element name.
  More results at FactBites »

 
 

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