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  • Lanthanum has the atomic symbol of Laexternal image lanthanum.jpg
  • The atomic number is 57
  • The atomic Mass is 139
  • The # of protons is 57
  • The Number of Neutrons in a Lanthanum-139 is 82
  • The Number of electrons is 57
  • The Melting point of Lanthanum is 920 degrees celsius
  • The Boiling point is 3469 degrees celsius
  • The Normal Phase is Solid
  • It usually Cost $233 for 100g
  • It is Classified as a Metal
  • The name is from the Greek Origin Lanthanein which is "To lie hidden"
  • Lanthanum was discovered By Carl G. Mosander in 1839

  • It is used in Carbon lights for movies and television
  • It is used in lighter flints

  • It is a soft-silvery white