Aluminum – Al, Element Information, Uses of Aluminium, Properties (For CBSE, ICSE, IAS, NET, NRA 2022)

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Title: Aluminum - Al

The Atomic Mass of Aluminium
Symbol of aluminum
Atomic number of aluminium
Atomic mass of aluminium
Discovered byHans Christian Oersted in 1825

The atomic mass of aluminium is .

Element Information

Element Information
Group13Melting Point

Period3Boiling Point

Atomic number13Relative atomic mass
State at SolidKey isotopes
Electron configurationCAS number
Chem Spider ID4514248Chem Spider is a free chemical structure database

What is Aluminium?

  • Aluminium is a soft, silvery-white, ductile, nonmagnetic metal in the boron group.
  • It is the third most abundant element in the Earth՚s crust. Depending on the surface reference, aluminium appears in the range from silvery to dull grey.

Uses of Aluminium

  • It is used in the transportation of railway, trucks, automobiles as castings.
  • It is used in packaging.
  • Al (II) compounds are observed in the reactions of Al metal with oxidants.
  • Using aluminon the presence of aluminium can be detected in qualitative analysis.

Properties of Aluminium

Various physical properties of aluminium have been discussed below:

  • The element is highly reactive. It has about one-third of stiffness and density of steel.
  • Aluminium has good corrosion resistivity.
  • It is capable of superconductivity.
  • They are many unknown isotopes of hydrogen with the mass number ranging from twenty-one to forty-one.
Related Elements
Related Elements


Who Discovered Aluminium?


Hans Christian Orsted.

What is the Atomic Mass of Aluminium?


The atomic mass of aluminium is 26.98 amu.

Aluminium Belongs to Which Period?



Aluminium Belongs to Which Group?


Aluminium is a group 13 element.

Aluminium is a ________ Block Element



Why is the Symbol for Aluminum AL?


The name derives from the Latin, alum and alumen for “stringent” because the early Romans called any substance with a stringent taste alum. The element was known in prehistoric times. In 1825, the Danish physicist, Hans Christian Oersted, isolated impure aluminium.

What is Pure Aluminium?


Pure aluminium is soft, ductile, corrosion resistant and has a high electrical conductivity. By utilizing various combinations of its advantageous properties such as strength, lightness, corrosion resistance, recyclability and formability, aluminium is being employed in an ever-increasing number of applications.

What Are 5 Physical Properties of Aluminum?


Physical and Chemical Properties

  • Melting point: (for AL 99,99 acc. to composition/alloying higher resp. lower)
  • Boiling point: (acc. to composition/alloying higher resp. lower)
  • Density:
  • Relative atomic mass 26,98.
  • Oxidation number: 3.
  • Atomic radius: 143,1 pm.
  • Ionic radius: 57 pm (+ 3)
  • Electrical conductivity:

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