Element Discoveries

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Across
  1. 2. element with the chemical symbol Cu with no known discovery date
  2. 5. the element with the chemical symbol C that has no identifiable date of discovery
  3. 7. discovered Cobalt in 1739 Georg__________
  4. 8. Arsenic was discovered in 1250 by Albertus _________
Down
  1. 1. Phosphorus was discovered in 1669 by Hennig________
  2. 3. Discovered in 1669 by Hennig Brand
  3. 4. the element with the chemical symbol Fe with no known date
  4. 5. Discovered in 1739 by Georg Brandt
  5. 6. Discovered in 1250 by Albertus Magnus