Symbol	Ga	Atomic radius: pm	122	Fusion: kJ/Mole	5.59
Name	Gallium	Ionic radius: pm	(+3)62	Boiling point: °C	2204
Atomic number	31	Electron affinity	0.3	Melting point: °C	30
Atomic weight	69.72	1st  ion potential	5.10	Specific Heat Cap: J/(g K)	0.37
Classification	Other metal	Natural form	Solid	Thermal Cond: W/(cm K)	0.41
Configuration	[Ar]3d104s2p1	Crystal structure	Ortho	Electrical Cond	0.0678
Oxidation states	3	Density	5.91	Abundance: mg/kg-crust	19
Electronegativity	1.81	Vaporization: kJ/Mole	254.0
Gallium was discovered in 1875 by Paul-Émile Lecoq de Boisbaudran.  Soon afterward he isolated the metal and found that its properties coincided with those Dimitri Mendeleev had predicted a few years earlier for eka-aluminum.			Uses - photocells, transistors