Carbon

Symbol | C
Latin name | Carboneum
Atomic number | 6
Period | 2
Element category | Nonmetals
Relative atomic mass | 12.011
Group | IV.A
Electronegativity | 2.5
Oxidation numbers | -4, 2, 4
Electron configuration | 1s2 2s2 2p2
Density [g/cm3] | 3.515
State | Solid
Melting point [°C] | 3550
Boiling point [°C] | 4827
Atomic radius [pm] | 67
Covalent radius [pm] | 77
Thermal conductivity [W m-1K-1] | 155
Heat capacity [J K-1g-1] | 0.709
Hardness [Mohs scale] | 10
Electrical conductivity [S m-1] | 1 · 105
1.st ionization energy [eV] | 11.2603
2.nd ionization energy [eV] | 24.383
3.rd ionization energy [eV] | 47.887
Stable isotopes | 2
Unstable isotopes | 5