Symbol Ga
Atomic Number 31
Atomic Mass 69.72 g.mol -1
Discovered by Paul-Émile Lecoq de Boisbaudran

Chemical Properties Of Gallium

Group 13 Melting point 29.8 °C
Period 4 Boiling point 2204 °C
Block p Density (g cm−3) 5.91
Atomic number 31 Relative atomic mass 69.723
State at 20°C Solid Key isotopes 69Ga
Electron configuration [Ar] 3d104s24p1 CAS number 7440-55-3
ChemSpider ID 4514603 ChemSpider is a free chemical structure database

What is Gallium?

  • Gallium is a chemical element with atomic number 31. The Solid gallium is of blue-gray metal having orthorhombic crystalline structure whereas a very pure gallium is coated with stunning silvery color.
  • It does not exist in pure form in nature, and its compounds do not act as a primary source of extraction

Uses Of Gallium

  • It is used in Blue-ray technology, blue and green LEDs, mobile phones and pressure sensors for touch switches.
  • Gallium nitride acts as a semiconductor. It consists of certain properties that make it very versatile.

Properties Of Gallium

  • This metal can be easily extracted as a by-product from iron pyrites, zinc blende, germanite, and bauxite.
  • It is solid at room temperature but when it comes in contact with cesium, mercury, and rubidium it becomes liquid (when heated slightly).
  • This element has been considered as a possible heat exchange medium in nuclear reactors.

Certain Facts About Gallium

  • When Gallium is added to certain metals it causes them to become brittle.
  • Gallium has one of the largest ranges in which it is a liquid when compared to other metals.

Practise This Question

Incomplete combustion of petrol or diesel oil in automobile engines can bes best detected by testing the fuel gases for the presence of-