PERIODIC TABLE

Gallium

Atomic No. 31 Ga Gallium

About Gallium

Gallium is a metal with atomic number 31 that melts slightly above ordinary room temperature and commonly forms compounds in the +3 oxidation state. Gallium arsenide is used in electronic and optoelectronic devices, while gallium nitride is used in light emitting diodes and power electronics. These compound semiconductors connect gallium chemistry to lighting, communications and efficient electrical power conversion.

Properties

Atomic Number
31
Atomic Symbol
Ga
Atomic Mass
69.723
CAS No.
7440-55-3
Density
5.904 g/cm³
Series
post-transition metal
Melting Point
29.76°C
Boiling Point
2,204°C
Thermal Conductivity
0.29 W/cm °C
Heat of Fusion
5.59 kJ/mol
Heat of Vaporization
256 kJ/mol
Electronegativity
1.81 pauling
Crystal Structure
Cubic
Electrical Conductivity
7.1×106 S/m

Gallium Products

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