Periodic Table Crossword Puzzle

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Across
  1. 1. A metal used in some medical imaging equipment
  2. 3. A metal used in some powerful magnets
  3. 6. A radioactive element with no stable isotopes
  4. 7. An element used to make green colors in some displays
  5. 9. A metal used to make some special glasses
  6. 10. A metal used in lighter flints and some polishing powders
Down
  1. 2. A metal used in some powerful magnets
  2. 4. An element used in very strong magnets
  3. 5. An element used to create red colors in some screens
  4. 8. A soft metal used in some camera lenses