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Text File  |  1992-09-10  |  469b  |  15 lines
  1.                                   YTTERBIUM
  2. Atomic symbol - Yb
  3. Atomic weight - 173.04
  4. Atomic number - 70
  5. Electron configuration - 2-8-18-32-8-2
  6. Oxidation states - +2, +3
  7. State of matter - solid
  8. Heavy metal-brittle
  9. Discovered in 1878 by J.-C.-G. de Marignac
  10. Boils at 1193 °C, melts at 824 °C
  11.  
  12. Notes:                                                     
  13. Ytterbium has few commercial uses. It is soft and silvery-white in color. It 
  14. has two alltropic forms.
  15.