ChemScope Detective Diaries

123456
Across
  1. 2. Substance responsible for the blue colour in copper sulphate
  2. 3. Common name for ethanoic acid
  3. 5. Radioactive element used in medical imaging
  4. 6. Alkali metal with the highest atomic number
Down
  1. 1. Gas responsible for the "rotten egg" smell
  2. 4. Element used in nuclear reactors as a control rod