Name Neodymium
Symbol Nd
Atomic Number 60
Atomic Mass 144.24 atomic mass units
Number of Protons 60
Number of Neutrons 84
Number of Electrons 60
Melting Point 1010.0° C
Boiling Point 3127.0° C
Density 7.007 grams per cubic centimeter
Normal Phase Solid
Family Rare Earth Metals
Period 6
Cost $1 per gram



Origin of Name From the Greek word neos, meaning new,
and didymos meaning twin
Date and Place of Discovery Discovered in 1925 in Vienna, Austria
Discovered by Baron Carl Auer von Welsbach
Common Compounds
Interesting facts
  • It constitutes 38 ppm of earth’s crust, but is not found free in nature.
  • It is found in monazite and bastnaesite.
  • It tarnishes rapidly when exposed to air.
Common Uses
  • Welder's and glass blower's goggles
  • Colors glass, ceramics and enamels
  • Permanent magnets
  • Fertilizers
  • Predictor of earthquakes
  • Solid state lasers
  • Infrared radiation filtering


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