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Ununoctium: Difference between revisions
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'''Ununoctium''' is the 118th element in the [[periodic table]]. The word ununoctium means one one eight. There is a chance that it has at least one [[isotope]]. Its [[chemical properties]] are thought to be similar to other [[noble gasses]]. Most of its physical properties are unknown due to recent discovery. It was first made in [[Russia]] at the [[Flerov Labortory of Nuclear reactions]]. It is made by firing [[calcium]] at [[californium]]. When ununoctium decays it becomes [[livermorium-290]]. It takes about 11 hours to make. | |||
Ununoctium is the 118th element in the [[periodic table]]. The word ununoctium means one one eight. There is a chance that it has at least one [[isotope]]. Its [[chemical properties]] are thought to be similar to other [[noble gasses]]. Most of its physical properties are unknown due to recent discovery. It was first made in [[Russia]] at the [[Flerov Labortory of Nuclear reactions]]. It is made by firing [[calcium]] at [[californium]]. When ununoctium decays it becomes [[livermorium-290]]. It takes about 11 hours to make. | |||
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== Properties == | == Properties == | ||
The word ununoctium literally means one one eight. Its atomic number is 118. Both melting and boiling points are unknown. It has one possible [[isotope]]. Its density and [[ionic radius]] is unknown. According to Pauling its electronegativity is also unknown. Its chemical properties are assumed to be similar to other gases in the [[noble gases group]]. The reason ununoctium has so many unknown properties is because it was discovered only recently and there are only a few atoms of it in the world. | The word ununoctium literally means one one eight. Its atomic number is 118. Both melting and boiling points are unknown. It has one possible [[isotope]]. Its density and [[ionic radius]] is unknown. According to Pauling its electronegativity is also unknown. Its chemical properties are assumed to be similar to other gases in the [[noble gases group]]. The reason ununoctium has so many unknown properties is because it was discovered only recently and there are only a few atoms of it in the world.<ref>Author, Unknown. [http://www.lenntech.com/periodic/elements/uuo.htm Ununoctium Uuo] ''Lenntech''. Web. Date-of-access October 21, 2013. </ref> | ||
<ref>Author, Unknown. [http://www.lenntech.com/periodic/elements/uuo.htm Ununoctium Uuo] ''Lenntech''. Web. Date-of-access October 21, 2013. </ref> | |||
<ref>Author, Unknown. [http://www.webelements.com/ununoctium/physics.html Ununoctium physical properties] ''Webelements''. Web. Date-of-access October 21, 2013. </ref> | Ununoctiums thermal conductivity is 0.0023 W m<sup>-1</sup> K<sup>-1</sup>. The coefficient of linear thermal expansion is unknown. Its density of solid is presumed to be 5700kg m<sup>-3</sup>. Ununoctium's estimated [[molar volume]] (atomic weight divided by the density) is 52. The velocity of sound is unknown. Its electrical resistivity is unknown. Finally, Ununoctiums elastic, optical, and electrical properties are all unknown.<ref>Author, Unknown. [http://www.webelements.com/ununoctium/physics.html Ununoctium physical properties] ''Webelements''. Web. Date-of-access October 21, 2013. </ref> | ||
== History== | == History== | ||
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[[File:Laser.jpg|thumb|150px|left|Ion laser]] | [[File:Laser.jpg|thumb|150px|left|Ion laser]] | ||
Ununoctium was first made at [[Dunba]] in [[Russia]] at the Flerov Laboratory of Nuclear Reactions. It was first made in 2002 and later more of it was made in 2005. A machine fired a beam of <sup>48</sup><sub>20</sub> [[calcium]] at <sup>249</sup><sub>98</sub> [[californium]]. Specifically it was 2.5 x 10<sup>19</sup> calcium ions. This caused a synthesis of ununoctium. Also three neutrons were released during the experiment. The formula for this process is <sup>249</sup><sub>98</sub>Cf +<sup>48</sup><sub>20</sub>Ca→<sup>294</sup><sub>118</sub>Uuo + 3<sup>1</sup>n. <ref name=azom>Author, unknown. [http://www.azom.com/article.aspx?ArticleID=7957 | Ununoctium was first made at [[Dunba]] in [[Russia]] at the Flerov Laboratory of Nuclear Reactions. It was first made in 2002 and later more of it was made in 2005. A machine fired a beam of <sup>48</sup><sub>20</sub> [[calcium]] at <sup>249</sup><sub>98</sub> [[californium]]. Specifically it was 2.5 x 10<sup>19</sup> calcium ions. This caused a synthesis of ununoctium. Also three neutrons were released during the experiment. The formula for this process is <sup>249</sup><sub>98</sub>Cf +<sup>48</sup><sub>20</sub>Ca→<sup>294</sup><sub>118</sub>Uuo + 3<sup>1</sup>n. <ref name=azom>Author, unknown. [http://www.azom.com/article.aspx?ArticleID=7957 Ununoctium (Uuo)-Discovery, Occurrence, Production, Properties and Applications of Ununoctium] ''azom''. Web. Date-of-access October 19, 2013. </ref> | ||
It is likely for Ununoctium to have only one known [[isotope]]. It is called Ununoctium-294. This is ununoctiums most stable isotope. Its half life is about 0.89 milliseconds. When put through an alpha decay ununoctium-294 becomes livermorium-290. The process of making ununoctium takes about 11 hours. <ref name=azom/> | It is likely for Ununoctium to have only one known [[isotope]]. It is called Ununoctium-294. This is ununoctiums most stable isotope. Its half life is about 0.89 milliseconds. When put through an alpha decay ununoctium-294 becomes livermorium-290. The process of making ununoctium takes about 11 hours. <ref name=azom/> | ||
