Carbon vs Barium

PropertyC CarbonBa Barium
Atomic number656
SymbolCBa
NameCarbonBarium
Categorynonmetalalkaline-earth-metal
Standard Atomic Weight12.0106 u137.327 u
Period26
Group142
Blockps
Phase at STPsolidsolid
Electron configuration[He]2s22p2[Xe]6s2
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][1, 2]
Electronegativity (Pauling)2.550.89
Electron affinity1.2621 eV0.1447 eV
Density2267 kg/m³3620 kg/m³
Melting point3549.85 °C726.85 °C
Boiling point3824.85 °C1896.85 °C
Discovery year17971808