Roentgenium

Images

Animated Roentgenium

History

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

General Info

AtomicNumber
111
Symbol
Rg
Name
Roentgenium

Atomic Info

Appearance
AtomicWeight
[280]
Color
ElectronicConfiguration
[Rn].5f14.6d10.7s1
ElectronegativityInPauling
AtomicRadiusInPM
IonRadiusInPM
VanDerWaalsRadiusInPM
IEinKJmol
EAinKJmol
OxidationStates
StandardState
BondingType
MeltingPoint
0
BoilingPoint
0
Density
0
State
Transition metal
DiscoveredYear
1994