111
282 u
Rg
Roentgenium
Transition Metal
Atomic Structure
Physical State
Group
11
Period
7
Block
d
Electron Configuration
[Rn] 5f¹⁴ 6d⁹ 7s²
Physical Properties
Atomic Mass:
282 u
Electronegativity:
N/A
Atomic Radius:
N/A
Ionization Energy:
N/A
Density:
28.7 g/cm³
Melting Point:
N/A
Boiling Point:
N/A
Historical Information
Discovered By:
Gesellschaft für Schwerionenforschung
Year Discovered:
1994