Electronic data		Thermal data		Steric data
Shells: 2,8,18,3 Orbitals: [Ar] 3d10 4s2 4p1 Electronegativity: 1.8, 1.6 1. Ionization potential: 5.9993 eV 2. Ionization potential: 20.51 eV 3. Ionization potential: 30.71 eV Oxidation states: 3 Electrical conductivity: 0.0678 10^6		Melting point: 29.78 °C Boiling point: 2204 °C Specific heat: 0.37 J/gK Heat of fusion: 5.590 kJ/mol Heat of vaporization: 258.70 kJ/mol Thermal conductivity: 0.406 W/cmK		Atomic radius: 1.81 Å Ionic radius: 0.62 Å () Covalent radius: 1.26 Å Atomic volume: 11.8 cm³/mol Density (293 K): 5.907 g/cm³ Crystal structure: Orthorhombic

Nuclide	Abundance [%]	Mass	Spin	Halflife	Decay mode	Decay tree
66Ga	0	66	0	9.5h	+,EC	View
67Ga	0	67	3/2	3.260d	EC	View
68Ga	0	67.928	1	1.130h	+,EC	View
69Ga	60.4	68.9256	3/2	--	stable	--
71Ga	39.6	70.9247	3/2	--	stable	--
72Ga	0	72	3	14.10h	-	View

Legend

Name origin:	Latin: Gallia (France)
Description:	Soft, blue-white metal.
Discovered by:	Paul Émile Lecoq de Boisbaudran
Year:	1875
Place:	France
Sources:	Found throughout the crust in minerals like bauxite, germanite and coal.
Use(s):	Used in semiconductor production. It us used in making LEDs (light-emitting diodes) and GaAs laser diodes.