86Rn
Radon
라돈 · ラドン
Noble gas
Atomic number86
ElementRn — Radon
Atomic mass222
CategoryNoble gas
Group18
Period6
Electron config[Xe] 4f14 5d10 6s2 6p6
Shells2,8,18,32,18,8
State (RT)Gas
Melting pt-71°C
Boiling pt-62°C
Discovered1900
Main usesRadiation therapy, geology tracer
2 · 8 · 18 · 32 · 18 · 8