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Indium

Key Stage 2

Meaning

Indium is a metal.

Key Stage 3

Meaning

Indium is a Group 3 metal element, on the Periodic Table, with an atomic number of 49.

About Indium

Molecular Structure

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

Atomic Structure

Indium as 49 protons and 66 neutrons in its nucleus giving it an Atomic Number of 49 and an atomic mass of 115.
Indium is in Period 5 of the Periodic Table because it has 5 electron shells.

Properties

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

Key Stage 4

Meaning

Indium is a Group 3 metal element, on the Periodic Table, with 49 protons in the nucleus.

About Indium

Molecular Structure

Indium has the chemical formula In.
Indium atoms join together in a giant metallic structure.

Atomic Structure

The most stable isotope of Indium has 66 neutrons in its nucleus giving it an atomic mass of 115.
Indium is in Period 5 of the Periodic Table because it has 5 electron shells.
Indium loses electrons to form positive metal ions.

Properties

Indium forms ionic bonds with non-metals.
Indium is a metal element so it is a good thermal conductor and a good electrical conductor.
Indium is a shiny solid at standard temperature and pressure and has a high melting point.
Indium is malleable.
Indium is sonorous.
Indium is ductile.