Astatine vs Radon

PropertyAt AstatineRn Radon
Atomic number8586
SymbolAtRn
NameAstatineRadon
Categoryhalogennoble-gas
Standard Atomic Weight210 u222 u
Period66
Group1718
Blockpp
Phase at STPsolidgas
Electron configuration[Xe]6s24f145d106p5[Xe]6s24f145d106p6
Oxidation states[-1, 1, 3, 5, 7][0, 2, 6]
Electronegativity (Pauling)2.2N/A
Electron affinity2.391 eV-0.7 eV
Density7000 kg/m³9.73 kg/m³
Melting point301.85 °C-71.15 °C
Boiling point-273.15 °C-61.7 °C
Discovery year19401900