Carbon vs Polonium

PropertyC CarbonPo Polonium
Atomic number684
SymbolCPo
NameCarbonPolonium
Categorynonmetalmetalloid
Standard Atomic Weight12.0106 u209 u
Period26
Group1416
Blockpp
Phase at STPsolidsolid
Electron configuration[He]2s22p2[Xe]6s24f145d106p4
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][-2, 2, 4, 5, 6]
Electronegativity (Pauling)2.552
Electron affinity1.2621 eV1.9 eV
Density2267 kg/m³9320 kg/m³
Melting point3549.85 °C253.85 °C
Boiling point3824.85 °C961.85 °C
Discovery year17971898