Which Happened First?

Discovery of tellurium

Discovery of tellurium
Image: W. Oelen · CC BY-SA 3.0 · source

Tellurium is a chemical element; it has the symbol Te and atomic number 52. It is a brittle, mildly toxic, rare, silver-white metalloid. Tellurium is chemically related to selenium and sulfur, all three of which are chalcogens. It is occasionally found in its native form as elemental crystals.

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Which happened first?

Timeline

  1. Discovery of molybdenum1778
  2. Discovery of tellurium (this page)1783
  3. Discovery of tungsten1783
  4. Discovery of strontium1787
  5. Discovery of yttrium1787
  6. Discovery of zirconium1789

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