Periodic Table Project Puzzle A

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