Atomic Number6Molar Mass12.01 gmol-1
Electron Configuration[He]2s22p2Normal Statesolid nonmetal
Density @STP2.27 g cm-3Melting Point3825oC
Boiling Pointn/aoCStable Isotopes12C, 13C
Atomic Radius77 pmIonic Radius260 (4-) pm
Electronegativity (Pauling)2.55Ionization Energy (1st)1086 kJ mol-1
Ionization Energy (2nd)2352 kJ mol-1Ionization Energy (3rd)4620 kJ mol-1
Molar Heat Capacity8.5 J K-1mol-1Standard Molar Entropy5.7 J K-1mol-1
Enthalpy of Fusion105.1 kJ mol-1Enthalpy of Vapourization710.9 kJ mol-1
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