Periodic Table Crossword Puzzle

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Across
  1. 5. Yb is the symbol from this element
  2. 6. This element has the same name as Superman's home planet.
  3. 8. Elements are sorted into __________.
  4. 10. Family 17
  5. 15. New elements are discovered every ____.
  6. 17. Creator of the Periodic Table
  7. 19. Dmitri Mendeleev was _________ about creating the Periodic Table.
Down
  1. 1. Elements that react in a similar way
  2. 2. Dy is the symbol for this element
  3. 3. Some elements _____ with substances well.
  4. 4. The only metal liquid at room temperature, with the same name as a planet.
  5. 7. The separated part of period 6
  6. 9. What makes up the Periodic Table
  7. 10. The first element on the Periodic Table.
  8. 11. Some symbols derive from the elements _____ name instead of English name.
  9. 12. Family 18
  10. 13. Every element is identified by its ______.
  11. 14. The right side of the Periodic Table
  12. 16. Most of the elements on the table are ______
  13. 18. Atomic number 76