Lanthanum
Contents
Key Stage 2
Meaning
Key Stage 3
Meaning
Lanthanum is a Lanthanide metal element, on the Periodic Table, with an atomic number of 57.
About Lanthanum
Molecular Structure
- Lanthanum has the chemical symbol La.
- Lanthanum atoms join together in large numbers to form a giant metal molecule.
Atomic Structure
- Lanthanum as 57 protons and 82 neutrons in its nucleus giving it an Atomic Number of 57 and an atomic mass of 139.
- Lanthanum is in Period 6 of the Periodic Table because it has 6 electron shells.
Properties
- Lanthanum is a metal element so it is a good thermal conductor and a good electrical conductor.
- Lanthanum is a shiny solid at room temperature.
- Lanthanum is malleable.
- Lanthanum is sonorous.
- Lanthanum is ductile.
Key Stage 4
Meaning
Lanthanum is a Lanthanide metal element, on the Periodic Table, with 57 protons in the nucleus.
About Lanthanum
Molecular Structure
- Lanthanum has the chemical formula La.
- Lanthanum atoms join together in a giant metallic structure.
Atomic Structure
- The most stable isotope of Lanthanum has 82 neutrons in its nucleus giving it an atomic mass of 139.
- Lanthanum is in Period 6 of the Periodic Table because it has 6 electron shells.
- Lanthanum loses electrons to form positive metal ions.
Properties
- Lanthanum forms ionic bonds with non-metals.
- Lanthanum is a metal element so it is a good thermal conductor and a good electrical conductor.
- Lanthanum is a shiny solid at standard temperature and pressure and has a high melting point.
- Lanthanum is malleable.
- Lanthanum is sonorous.
- Lanthanum is ductile.