INTRODUCTION
Aluminium is the most abundant metallic element in Earth's crust.It is a light weight, silvery metal,it is a strongly electropositive metal and extremely reactive, so therefore it is never found as a free metal.
It resist corrosion because in contact with air, aluminum rapidly becomes covered with a tough, transparent layer of aluminum oxide that resists further corrosive action.
BASIC INFORMATIONS
- Atomic Number
- 13
- Atomic Mass
- 26.981539
- Atomic radius
- 0.125
- Ionization energy
- 577
- Electronic config
- 2,8,3
- Principal Valency
- +3
- Density g/cm³
- 2.70
- Melting point °C
- 660.32
- Boiling point °C
- 2519
- Type of Element
- Metal
- Electronegativity
- 1.5
- Element Category
- Boron Family
- Appearance
- Silvery white solid
- Block
- p-block
- Period
- 3
- Group
- 13
- No of Isotopes
- 22
- Occurrence
- Combine form
- Abundance in ppm
- 83,000
- Year of Discovery
- 1823
EXTRACTION
It is extracted by the electrolysis of its solution
OXIDATION STATES
+3,+2,+1 (Amphoteric)
MAJOR SOURCE
Bauxite
EXAMPLES OF COMPOUND PRESENT
Aluminium trioxocarbonate(IV) Aluminate(III) Aluminium Potassium
ECONOMIC IMPORTANCE
* Aluminum foilis used as household component for food package because of it's ability to protects food and other perishable items from spoilage.
* It is used as a material in low-temperature nuclear reactors because it absorbs relatively few neutrons.
* Aluminum's resistance to corrosion in salt water makes it useful in boat hulls and various aquatic devices.
* Its high strength-to-weight ratio makes aluminum useful in the construction of aircraft, railroad cars, and automobiles.
