Ununtrium

From Freepedia

113 ununbium ← ununtrium → ununquadium Tl ↑ Uut ↓ (Uht) Image:Uut-TableImage.png periodic table
General
Name, Symbol, Number	ununtrium, Uut, 113
Chemical series	presumably poor metals
Group, Period, Block	13, 7, p
Appearance	unknown, probably silvery white or metallic gray
Atomic mass	(284) g/mol
Electron configuration	perhaps [Rn] 5f14 6d10 7s2 7p1 (guess based on thallium)
Electrons per shell	2, 8, 18, 32, 32, 18, 3
Phase	presumably a solid
CAS registry number	54084-70-7
References

Ununtrium (eka-thallium) is the temporary name of an unconfirmed synthetic element in the periodic table that has the temporary symbol Uut and has the atomic number 113. Some research has referred to it as "eka-thallium". It comes from the alpha decay (Releases a Helium nucleus) of Ununpentium.

History

On February 1, 2004, ununtrium and ununpentium were reported by a team composed of Russian scientists at Dubna (Joint Institute for Nuclear Research), and American scientists at the Lawrence Livermore National Laboratory. Their discovery of the element still awaits confirmation. [1]

On September 28, 2004, a team of Japanese scientists declared that they succeeded in synthesizing the element. [2] (Morita et al, Experiment on the Synthesis of Element 113 in the Reaction ²⁰⁹Bi(⁷⁰Zn, n)²⁷⁸113, J. Phys. Soc. Jpn., Vol. 73, No.10. Also press release in Japanese)

Ununtrium is a temporary IUPAC systematic element name.

External links

• WebElements.com - Uut
• Apsidium - Ununtrium
• Discovery of Elements 113 and 115
• Discovery of New Superheavy Elements 113 and 115
• Superheavy elements