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

Glide to success with Doorsteptutor material for competitive exams : get questions, notes, tests, video lectures and more- for all subjects of your exam.

Title: Aluminum - Al

The Atomic Mass of Aluminium
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

BlockpDensity
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
HydrogenNickelNeonPotassium
HeliumCopperSodiumCalcium
LithiumZincMagnesiumScandium
BerylliumGalliumCobaltTitanium
BoronGermaniumSiliconVanadium
CarbonArsenicPhosphorusChromium
NitrogenSeleniumSulfurManganese
OxygenBromineChlorineIron
FlurineKryptonArgon

Questions

Who Discovered Aluminium?

Ans:

Hans Christian Orsted.

What is the Atomic Mass of Aluminium?

Ans:

The atomic mass of aluminium is 26.98 amu.

Aluminium Belongs to Which Period?

Ans:

3.

Aluminium Belongs to Which Group?

Ans:

Aluminium is a group 13 element.

Aluminium is a ________ Block Element

Ans:

p.

Why is the Symbol for Aluminum AL?

Ans:

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?

Ans:

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?

Ans:

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:

Developed by: