By: Megan Oligmueller

Periodic table information

Family: Boron

Group: 13

Period: 4

Atomic number: 31

Mass: 69.723

Number of protons: 31

Number of neutrons: 39

Number of electrons: 31

Symbol: Ga

Where is it found in nature?

*Gallium can be found in coal, diaspore and germanite. Also can be found in the earths crust.

*Gallium is a soft, metal and elemental gallium is a brittle solid at low temperatures.


*Gallium was discovered in Paris of 1875 by chemist lecoq de Boisbaudran.

* The year after the discovery he was able to obtain pure gallium through the electrolysis of a solution of gallium hydroxide in the potassium hydroxide.

The Properties

*Physical Property: Gallium is a soft, silvery metal that has a shiny surface. It is very un-metal -like, it is so soft that you could cut through it with a knife.

*Chemical Property: Gallium is a pretty reactive metal. It reacts with both alkalis and acids. It combines with most non-metals at a high temperature.


* Today, gallium is mainly used for building semiconductors

* Researchers are currently studying the oral intake of gallium for the treatment of several cancers.

* Gallium forms a brilliant mirror when it is painted on glass.


* Gallium is stable in water and air, but reacts and dissolves with acids and alkalis.

* It is easily for it to transform into an alloy with many metals and has been used in nuclear bombs to stabilize the crystal structure.

* Gallium is considered to be non- toxic