Ga
INTRODUCTION
Gallium is the only element that remains in the liquid state over a wider range of temperatures than any other element.It can be supercooled; like water, it expands upon freezing.
It occurs in small quantities in some varieties of zinc blende, bauxite, pyrite, magnetite, and kaolin. Gallium resembles aluminum in forming trivalent salts and oxides.
BASIC INFORMATIONS
- Atomic Number
- 31
- Atomic Mass
- 69.723
- Atomic radius
- 0.125
- Ionization energy
- 579
- Electronic config
- 2,8,18,3
- Principal Valency
- +3
- Density g/cm³
- 5.90
- Melting point °C
- 29.7646
- Boiling point °C
- 2204
- Type of Element
- Metal
- Electronegativity
- 1.6
- Element Category
- Boron Family
- Appearance
- Blue-gray solid
- Block
- p-block
- Period
- 4
- Group
- 13
- No of Isotopes
- 31
- Occurrence
- Combine form
- Abundance in ppm
- 19
- Year of Discovery
- 1875
EXTRACTION
It is extracted by the electrolysis of its solution
OXIDATION STATES
+3,+2,+1 (Amphoteric)
MAJOR SOURCE
zinc blende, bauxite, pyrite, magnetite.
EXAMPLES OF COMPOUND PRESENT
GaAs
ECONOMIC IMPORTANCE
* Due to its low melting point and high boiling point, it used in high-temperature thermometers.
* Gallium is also used extensively in rectifiers, transistors, photoconductors, laser, and maser diodes.
