111Rg
Roentgenium
뢴트게늄 · レントゲニウム
Transition metal
Atomic number111
ElementRg — Roentgenium
Atomic mass282
CategoryTransition metal
Group11
Period7
Electron config[Rn] 5f14 6d9 7s2 (est.)
Shells2,8,18,32,32,17,2
State (RT)Solid (est.)
Melting ptNo data
Boiling ptNo data
Discovered1994
Main usesResearch only (superheavy)
2 · 8 · 18 · 32 · 32 · 17 · 2