Roentgenium

Transition metal

Symbol: Rg

Atomic Number: 111

Standard State: Expected to be a Solid

Atomic Mass: 282.169

Electron Configuration: [Rn]7s2 5f14 6d9 (predicted)

Electronegativity:

Atomic Radius:

Ionization Energy:

Melting Point:

Boiling Point:

Density:

Year Discovered: 1994