Carbon vs Americium

PropertyC CarbonAm Americium
Atomic number695
SymbolCAm
NameCarbonAmericium
Categorynonmetalactinide
Standard Atomic Weight12.0106 u243 u
Period27
Group14N/A
Blockps
Phase at STPsolidsolid
Electron configuration[He]2s22p2[Rn]7s25f7
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][2, 3, 4, 5, 6, 7]
Electronegativity (Pauling)2.551.3
Electron affinity1.2621 eV0.1 eV
Density2267 kg/m³1.369000e+4 kg/m³
Melting point3549.85 °C1175.85 °C
Boiling point3824.85 °C2010.85 °C
Discovery year17971944