Periodic Table Project

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Across
  1. 3. Metal ions are called this
  2. 6. A transition metal in period three
  3. 7. Noble gases reactivity
  4. 9. Did not get credit due to an "incompleteness" in his table
  5. 11. A property of a metal
  6. 13. Nonmetal ions are called this
  7. 18. This group has full valence electron shells
  8. 19. Arraned elements in order of increasing atomic number
  9. 20. An alkali metal in period three
  10. 24. This group is ductile and malleable
  11. 25. Nonmetals do this with their electrons
  12. 26. A Halogen found in period five
  13. 27. A property of a nonmetal
  14. 28. An alkaline earth metal in period two
  15. 30. The outermost electrons are called this
Down
  1. 1. A noble gas found in period four
  2. 2. This group is known as "rare earth metals."
  3. 4. The Lewis Dot Structure helps to visualize this in an atom
  4. 5. The only group that contains solids, liquids, and gases
  5. 8. The most reactive metals
  6. 10. A property of metalloids
  7. 12. Magnesium is this type of element
  8. 14. A lanthanide found in period six
  9. 15. Hydrogen is this type of element
  10. 16. Arsenic is this type of element
  11. 17. This group is all radioactive and man-made
  12. 21. An actinide found in period seven
  13. 22. This group is relatively soft and oxidizes in air
  14. 23. Metals do this with their electrons
  15. 29. Credited for designing the first periodic table