Carbon vs Strontium

PropertyC CarbonSr Strontium
Atomic number638
SymbolCSr
NameCarbonStrontium
Categorynonmetalalkaline-earth-metal
Standard Atomic Weight12.0106 u87.62 u
Period25
Group142
Blockps
Phase at STPsolidsolid
Electron configuration[He]2s22p2[Kr]5s2
Oxidation states[-4, -3, -2, -1, 0, 1, 2, 3, 4][1, 2]
Electronegativity (Pauling)2.550.95
Electron affinity1.2621 eV0.052 eV
Density2267 kg/m³2640 kg/m³
Melting point3549.85 °C776.85 °C
Boiling point3824.85 °C1381.85 °C
Discovery year17971792