Ununpentium [Uup] (CAS-ID: 54085-64-2) locate me
An: 115 N: Am: [ 288 ]
Group No: 15 Group Name: Pnictogen
Block: p-block Period: 7
State: presumably a solid at 298 K
Colour: unknown, but probably metallic and silvery white or grey in appearance Classification: Metallic
Boiling Point: unknown (?)
Melting Point: unknown (?)
Density: unknown
Availability: This item is purely synthetic and is not available commercially.
Shell Structure diagrams | Atomic Radius diagram

Discovery Information
Who: Dubna (Joint Institute for Nuclear Research)
When: 2004
Where: Russia
Name Origin
From the latin for "one one five".
Sources
Uses
None.
Notes
Experiments resulting in the formation of element 115 were reported in February 2004 following experiments carried out between 14 July - 10 August 2003 involving scientists at Dubna (Joint Institute for Nuclear Research at the U400 cyclotron with the Dubna gas-filled recoil separator, DGFRS) in Russia in a collaboration also involving scientists at the Lawrence Livermore National Laboratory, USA. Only four nuclei were identified and the claim has not yet been ratified, but the results are now published in a reputable peer-reviewed journal.
Currently, the identification of element 115 is yet to be confirmed by IUPAC, but the experiments leading to element 115 are now published in a prestigious peer reviewed journal. As only about four atoms of element 115 have ever been made (through nuclear reactions involving fusing calcium nuclei with americium nuclei ) isolation of an observable quantity has never been achieved, and may well never be.