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Thulium

Key Stage 2

Meaning

Thulium is a metal.

Key Stage 3

Meaning

Thulium is a Lanthanide metal element, on the Periodic Table, with an atomic number of 69.

About Thulium

Molecular Structure

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

Atomic Structure

Thulium as 69 protons and 100 neutrons in its nucleus giving it an Atomic Number of 69 and an atomic mass of 169.
Thulium is in Period 6 of the Periodic Table because it has 6 electron shells.

Properties

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

Key Stage 4

Meaning

Thulium is a Lanthanide metal element, on the Periodic Table, with 69 protons in the nucleus.

About Thulium

Molecular Structure

Thulium has the chemical formula Tm.
Thulium atoms join together in a giant metallic structure.

Atomic Structure

The most stable isotope of Thulium has 100 neutrons in its nucleus giving it an atomic mass of 169.
Thulium is in Period 6 of the Periodic Table because it has 6 electron shells.
Thulium loses electrons to form positive metal ions.

Properties

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