Gallium

Atomic number31
Atomic weight69.723
Discovery (year)1875
Atomic radius (A)1.24C1.38
Melting point (oC)29.78
Boiling point (oC)2403
Density (g/cm3)5.9
Specific heat (cal/g oC)0.079
Ionization potential (eV)5.999
Electron Affinity (eV)0.3