Platinum vs Radon

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PropertyPt PlatinumRn Radon
Atomic number7886
SymbolPtRn
NamePlatinumRadon
Categorytransition-metalnoble-gas
Standard Atomic Weight195.084 u222 u
Period66
Group1018
Blocksp
Phase at STPsolidgas
Electron configuration[Xe]6s14f145d9[Xe]6s24f145d106p6
Oxidation states[-3, -2, -1, 0, 1, 2, 3, 4, 5, 6][0, 2, 6]
Electronegativity (Pauling)2.28N/A
Electron affinity2.1228 eV-0.7 eV
Density2.146000e+4 kg/m³9.73 kg/m³
Melting point1768.4 °C-71.15 °C
Boiling point3824.85 °C-61.7 °C
Discovery year17351900