113 ununbium ← ununtrium → ununquadium Tl ↑ Uut ↓ (Uht) 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". General Name, Symbol, Number ununbium, Uub, 112 Chemical series transition metals Group, Period, Block 12, 7, d Appearance unknown, probably silvery white or metallic gray Atomic mass (285) g/mol Electron configuration perhaps [Rn] 5f14 6d10 7s2 (guess based on mercury) Electrons per shell 2, 8, 18, 32, 32, 18... 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 thallium, Tl, 81 Chemical series poor metals Group, Period, Block 13, 6, p Appearance silvery white Atomic mass 204. ... Image File history File links Download high resolution version (890x260, 21 KB)for unified link coding, copy of File history Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version. ... State at standard temperature and pressure those numbered in red are gases those numbered in green are liquids those numbered in black are solid Natural occurrence those without borders have not been discovered/synthesized yet those with dotted borders do not occur naturally (Synthetic elements) those with dashed borders naturally... This is a list of chemical elements, sorted by name and color coded according to type of element. ... Categories: Chemical elements ... A chemical series is a group of chemical elements whose physical and chemical characteristics vary progressively from one end of the series to another. ... The poor metals or post-transition metals are the metallic elements of the p-block, occurring between the metalloids and the transition metals, shown belown in red. ... 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 Boron group is periodic table group 13 (IUPAC style) 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 an element (also known as the relative atomic mass or average atomic mass or atomic weight) is the average atomic mass of all the chemical elements isotopes as found in a particular environment, weighted by isotopic abundance. ... To help compare different orders of magnitude we list here masses between 60. ... Electron atomic and molecular orbitals In atomic physics, 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 Melting point 202 K (-71 °C... General Name, Symbol, Number thallium, Tl, 81 Chemical series poor metals Group, Period, Block 13, 6, p Appearance silvery white Atomic mass 204. ... Properties The electron is a subatomic particle. ... In physics and quantum chemistry, an energy level is a quantized energy of a bound quantum mechanical state. ... 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. ... A solid is a phase of matter, characterized by resistance to deformation and changes of volume. ... 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. ... Predicted properties Name, Symbol, Number Ununtrium, Uut, 113 Chemical series Presumably poor metals Group, Period, Block 13, 7 , p Appearance Unknown, probably a metallic and silvery white or grey colour Atomic weight [284] amu (A guess) Electron configuration [Rn] 5f14 6d10 7s27p1 (A guess based upon thallium) e- s per... 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... The periodic table of the chemical elements, also called the Mendeleev periodic table, is a tabular display of the known chemical elements. ... The atomic number (Z) is a term used in chemistry and physics to represent the number of protons found in the nucleus of an atom. ...

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] February 1 is the 32nd day of the year in the Gregorian Calendar. ... 2004 is a leap year starting on Thursday of the Gregorian calendar. ... 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... 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. ... The Joint Institute for Nuclear Research (JINR) in Dubna, Moscow region, Russia is an international research centre for nuclear sciences, involving around 1000 scientists from eighteen states (mostly former Communist nations). ... Aerial view of the lab and surrounding area. ...

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) September 28 is the 271st day of the year (272nd in leap years). ... 2004 is a leap year starting on Thursday of the Gregorian calendar. ...

Ununtrium 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. ...

External links

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