Periodic table Crossword Puzzle

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Across
  1. 4. column in the periodic table?
  2. 6. elements that aren't found in nature?
  3. 8. Chemical element in group 14?
  4. 9. Scientist who discovered the periodic table?
  5. 10. what element symbol has the abbreviation of Ti?
Down
  1. 1. elements on the top row?
  2. 2. Chemical element in group 15?
  3. 3. what element had the La as their element symbol?
  4. 5. rows in the periodic table?
  5. 7. Chemical element in group 13?