Silicon

Atomic number14
Atomic weight28.0855
Discovery (year)1824
Atomic radius (A)1.17
Melting point (oC)1414
Boiling point (oC)2642
Density (g/cm3)2.34
Specific heat (cal/g oC)0.162
Ionization potential (eV)8.151
Electron Affinity (eV)1.385