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Text File  |  1992-07-13  |  539b  |  16 lines
  1.                                    MANGANESE
  2. Atomic symbol - Mn
  3. Atomic weight - 54.93805
  4. Atomic number - 25
  5. Electron configuration - 2-8-13-1
  6. Oxidation states - +2, +3, +4, +6, +7
  7. State of matter - solid
  8. Heavy metal-brittle
  9. Discovered in 1774 by Carl Wilhelm Scheele
  10. Boils at 2097 °C, melts at 1244 °C
  11.  
  12. Notes:
  13. Manganese is quite abundant. It is a grey-white, hard, brittle metal which is
  14. essential to the process of steel making. Nearly all aluminum and magnesium
  15. alloys contain manganese for improved corrosion resistance.
  16.