Heavy metals

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Across
  1. 2. bottom most position in periodic table
  2. 5. mineral in epsom salt
  3. 8. metals forming coloured compounds
  4. 9. an unusual contraction due to f block is caused in these elements
Down
  1. 1. columns in periodic
  2. 3. required for bone health
  3. 4. rows in periodic table
  4. 5. periodic law formulator
  5. 6. substance that cannot conduct electricity
  6. 7. an element that has medicinal uses and it is silvery white and brittle