Uuu - Unununium

Unununium

 Unununium 
Uuu
Atomic Number: 111
Atomic Weight: -272.0
Element Type: Transition Metal
Crystal Structure:
Melting Point: °C = °F = K
Boiling Point: °C = °F = K
Critical Temp: °C = °F = K
Atomic Radius: Å (Å = Angstrom = 10-10 m)
Covalent Radius: Å
Electronegativity:

History

Discovered by Gesellschaft Schwerionenforschung (GSI) in Darmstadt, in 1994. Reasearchgroup of S. Hofmann, V. Ninov, F.P. Hessberger, P. Armbruster, H. Folger, G. Munzenberg,H.J. Schott, and others.


Sources