Periodic Table

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Across
  1. 2. What is the basic building block of a neutron
  2. 6. The smallest element in the Periodic Table
  3. 7. Vertical columns on the Periodic Table
  4. 10. Horizontal rows on the Periodic Table
  5. 11. Name of first element from the group that contains one metalloid and four metals
  6. 14. The number of elements on the Periodic Table
  7. 16. The rarest element
  8. 18. The number of periods on the Periodic Table
  9. 19. The number of years it took for the Periodic Table to have a regular pattern
  10. 20. The most abundant element on Earth
Down
  1. 1. The majority of the elements on the Periodic Table are .................
  2. 3. The inventor of the Periodic Table
  3. 4. The first element on the Periodic Table
  4. 5. The most reactive non-metal element on the Periodic Table
  5. 8. The first artificial element ever made
  6. 9. An element that smells like garlic when it is heated
  7. 12. Right side of the Periodic Table
  8. 13. A series of transition metals found near the bottom of the Periodic Table
  9. 15. An element found in diamonds
  10. 17. [Bonus]What do you call someone who says that a Lithium and Argon atom are bonded?