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Seaborgium


Seaborgium is the one hundred six element with the symbol Sg on the periodic table. It is a synthetic element which means that Seaborgium isn't presented in the environment at all.<ref>Winter, M. (n.d.). WebElements Periodic Table of the Elements | Seaborgium | Essential information. Retrieved from http://www.webelements.com/seaborgium/</ref> <ref>ChemEd DL Application: Periodic Table Live! (n.d.). Retrieved from http://www.chemeddl.org/resources/ptl/</ref> It can be found in Group 6 and Period 7. <ref>Gagnon, S. (n.d.). It's Elemental - The Element Seaborgium. Retrieved from http://education.jlab.org/itselemental/ele106.html</ref> Since, Seaborgium is an artificially produced radioactive element, its appearance is unknown. Its predicted that it has a silvery white or metallic gray colour.<ref>Lenntech, B. (n.d.). Seaborgium (Sg) - Chemical properties, Health and Environmental effects. Retrieved from http://www.lenntech.com/periodic/elements/sg.htm</ref>


Name Seaborgium
Atomic Number 106
Atomic Weight 271 amu.
Symbol Sg
Melting Point ( °C ) unknown
Boiling Point ( °C ) unknown
Density (g/cm3) 35 g/cm3 (predicted)
Earth crust (%) unknown
Discovery (Year) 1947
Group 6
Electron configuration [Rn] 5f14 6d4 7s2
Ionization energy (eV) 757.4 kJ·mol−1

Discovery

In June 1974, scientists reported the discovery of the 106th element at the Joint Institute for Nuclear research in Dubna, USSR. Then, in September 1974, a team of scientists led by Albert Ghiorso in the Berkeley/Livermore collaboration. produced the Seaborgium by bombarding 249Cf with ions of 18O using a Super-Heavy Ion Linear Accelerator. This lead to the makings of Seaborgium and its four free neutrons. The collaboration decided to name the element in honor of American Chemist Glenn T. Seaborg, who discovered other actinides in the periodic table.<ref>Seaborgium - Wikipedia, the free encyclopedia. (n.d.). Retrieved October 28, 2014, from http://en.wikipedia.org/wiki/Seaborgium</ref>

References

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