Rare earth elements are a group of seventeen chemical elements that occur together in the periodic table
(Credit: Periodic Table of the Elements, in Pictures and Words © 2005-2016 Keith Enevoldsen elements.wlonk.com ).
The group consists of yttrium and the 15 lanthanide elements:
- yttrium
- lanthanum
- cerium
- praseodymium
- neodymium
- promethium
- samarium
- europium
- gadolinium
- terbium
- dysprosium
- holmium
- erbium
- thulium
- ytterbium
- lutetium
- scandium
The International Union of Pure and Applied Chemistry includes scandium in their rare earth element definition.
