The Periodic Table

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Across
  1. 2. period 4 group 8 on the table
  2. 4. Vertical lines on the table
  3. 6. Number of Groups
  4. 7. Non-Metal In the first group
  5. 10. type of property that decreases as you go right and increases as you go down on the table
  6. 12. The bottom number on the element square
  7. 14. Metal in the sixth group and in the "9th period" (on the separate periods)
  8. 15. Metalloid in the 2nd period
  9. 16. Type of element on the table with luster
  10. 17. Type of element on the table with various luster
  11. 19. Number of Periods
  12. 20. Metal in the ninth group and fourth period
Down
  1. 1. Type of element on the table with no luster
  2. 3. period 2 group 16 on the table
  3. 5. type of property that increases as you go right and / or down on the table
  4. 8. period 1 group 18 on the table
  5. 9. The squares on the table
  6. 11. The top number of the element square
  7. 13. The letter(s) symbolizing the element
  8. 18. Horizontal lines on the table