Ytterbium vs Radon

PropertyYb YtterbiumRn Radon
Atomic number7086
SymbolYbRn
NameYtterbiumRadon
Categorylanthanidenoble-gas
Standard Atomic Weight173.054 u222 u
Period66
GroupN/A18
Blocksp
Phase at STPsolidgas
Electron configuration[Xe]6s24f14[Xe]6s24f145d106p6
Oxidation states[0, 1, 2, 3][0, 2, 6]
Electronegativity (Pauling)N/AN/A
Electron affinity-0.02 eV-0.7 eV
Density6900 kg/m³9.73 kg/m³
Melting point818.85 °C-71.15 °C
Boiling point1195.85 °C-61.7 °C
Discovery year18781900