GaZ =  31

From the Latin "Gallia", meaning "Gaul"
(AM) Atomic Mass 69.723  amu    Oxidation States +3
   (BP) Boiling Point 2403  °C    (MP) Melting Point 29.78  °C
   (ρ) Density 5.9  g/cm3    Crystal Structure Orthorhombic
   ( χ ) Electronegativity 1.6    (AR) Atomic Radius 1.26  Å
   Physical State Liquid (C) Heat Capacity 0.371  J/g °C
Electronic-Config [Ar]  3d10  4s2  4p1     (I1) First Ionization E 578.81  kJ/mol
   (ΔHvap) Heat of Vaporization 254  kJ/mol     (ΔHfus) Heat of Fusion 5.59  kJ/mol
   Year of Discovery 1886    Location of Discovery France
(E°) Standard Potential Ga3+⇔ Ga (-0.530 V)
Stable isotopes  69Ga,  71Ga
Discovered/Synthesized by Paul-Émile Lecoq de Boisbaudran
Natural Source Isolated as a byproduct of zinc and alumina processing
Common Uses Semiconductors, light-emitting diodes, signal lights, tiny lasers
Other Info Will melt in your hand at only 29 deg C
Like water, it expands when freezes
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