Rare Earth Elements

Rare Earth Metals included on the Periodic Table based on the IOUPAC 1985 standard
Click on the ABC Elements Link for Information about each chemical element in the Periodic Table
What are Rare Earth Metals? Define Rare Earth Metals
Rare Earth Metals are used as a term in Periodic Chemistry when classifying the chemical elements. Each element can usually be classified as a metal or a non-metal based on their general Physical and Chemical Properties. The rare earths share many common properties. This makes them difficult to separate or even distinguish from each other. Rare Earth Metals are any of the metallic elements within Group 3 in the Periodic Table (see the List of Rare Earth metals). Rare Earth metals are a set of 17 chemical elements in the periodic table, specifically the fifteen lanthanoids plus scandium and yttrium. All lanthanoids are relatively soft and reactive metals.

What are Rare Earth Metals? Common Properties of Rare Earth Metals
The rare earths metals are silver, silvery-white or gray metals which have a high luster, but tarnish readily in air. The rare earth metals have high electrical conductivity. Nearly 75% of all the elements in the Periodic Table are classified as metals which are detailed in the
 List of Metals.

Common properties of Rare Earth metals
The elements classed as “Rare Earth metals” have the following properties in common:

  • Silver, silvery-white, or gray metals
  • High Luster
  • Tarnish in air
  • Have a high electrical conductivity