Open main menu

Gallium

Key Stage 2

Meaning

Gallium is a metal.

Key Stage 3

Meaning

Gallium is a Group 3 metal element, on the Periodic Table, with an atomic number of 31.

About Gallium

Molecular Structure

Gallium has the chemical symbol Ga.
Gallium atoms join together in large numbers to form a giant metal molecule.

Atomic Structure

Gallium as 31 protons and 39 neutrons in its nucleus giving it an Atomic Number of 31 and an atomic mass of 70.
Gallium is in Period 4 of the Periodic Table because it has 4 electron shells.

Properties

Gallium is a metal element so it is a good thermal conductor and a good electrical conductor.
Gallium is a shiny solid at room temperature.
Gallium is malleable.
Gallium is sonorous.
Gallium is ductile.

Key Stage 4

Meaning

Gallium is a Group 3 metal element, on the Periodic Table, with 31 protons in the nucleus.

About Gallium

Molecular Structure

Gallium has the chemical formula Ga.
Gallium atoms join together in a giant metallic structure.

Atomic Structure

The most stable isotope of Gallium has 39 neutrons in its nucleus giving it an atomic mass of 70.
Gallium is in Period 4 of the Periodic Table because it has 4 electron shells.
Gallium loses electrons to form positive metal ions.

Properties

Gallium forms ionic bonds with non-metals.
Gallium is a metal element so it is a good thermal conductor and a good electrical conductor.
Gallium is a shiny solid at standard temperature and pressure but it has a low melting point of around 30 °C.
Gallium is malleable.
Gallium is sonorous.
Gallium is ductile.