Atomic number: 60

Symbol: Nd

Category: lanthanoid metal

Density at 25°C: solid: density: 7.01 g·cm−3

Magnets is what comes to mind first when thinking of neodymium.  Though originally it was used to dye glass for a slightly reddish colour or tint. Nd compounds are also used in lasers and laser fusion research.

Neodymium metal sample. image adapted from

Use, natural applications or common combinations: 

  • magnets
  • glass colouring
  • lasers - Nd:YAG laser is one of the most commonly used solid-state lasers.

Basic characteristics:

  • Standard atomic weight: 144.242(3)
  • Melting point:  1016 °C 
  • Boiling point: 3074 °C
  • Radioactivity: all mostly stable, or have very long half-lives.