Periodic Table Project

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Across
  1. 5. What is a property of Lanthanides?
  2. 7. How was the modern periodic table organized?
  3. 11. What group is Sodium in?
  4. 12. What group is Neon in?
  5. 13. What kind of element is Hydrogen?
  6. 16. What group is Cerium in?
  7. 18. What is a property of metalloids?
  8. 19. Valence electrons are the ________ electrons.
  9. 20. What do the dots around the element's symbol represent?
  10. 23. What is a property of Transition Metals?
  11. 25. What group is Flourine in?
  12. 26. What nonmetal is the most reactive?
  13. 27. What is a property of Alkali Metals?
  14. 29. What group is Iron in?
Down
  1. 1. What is a property of Halogens?
  2. 2. What is a property of Actinides?
  3. 3. What group is Uranium in?
  4. 4. Who was credited with designing the first periodic table?
  5. 6. What group is Calcium in?
  6. 8. What metal is the most reactive?
  7. 9. What kind of element is Boron?
  8. 10. What is a property of nonmetals?
  9. 11. What are negative ions called?
  10. 14. What kind of element is Lithium?
  11. 15. Mendeleev organized the elements in order of increasing atomic ________.
  12. 17. Do metals gain or lose electrons?
  13. 21. What is a property of Alkaline Earth Metals?
  14. 22. What are positive ions called?
  15. 24. What is a property of Noble Gases?
  16. 28. What is a property of metals?