Lanthanides are the 4f-block elements commonly associated with the rare-earth family. Their similar chemistry is paired with exceptional magnetic, optical and catalytic properties that make them essential to modern electronics, motors, lasers, phosphors and clean-energy systems.
Overview
Neodymium, praseodymium, dysprosium and terbium are important in high-performance permanent magnets. Europium and terbium support phosphors and displays, while erbium and ytterbium are important in lasers and optical communications. Supply concentration and recycling are strategic concerns.
Elements in this category
- Lanthanum
- Cerium
- Praseodymium
- Neodymium
- Promethium
- Samarium
- Europium
- Gadolinium
- Terbium
- Dysprosium
- Holmium
- Erbium
- Thulium
- Ytterbium
- Lutetium
Using periodic-table categories in engineering
Periodic-table categories are useful for organizing trends, but they are not a substitute for material specifications. Engineering performance depends on purity, microstructure, processing history, temperature, environment and the way an element is combined into alloys or compounds.
Explore further: Periodic Table · Materials Library · Material Properties
