Periodic Table Crossword

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Across
  1. 1. Which block/sublevel forms ions that are generally colored?
  2. 4. What element is in group 15 and period 4 of the periodic table?
  3. 6. What property describes the size of a neutral atom?
  4. 9. Elements in a group have the same number of ___
  5. 11. What group has the most metallic characteristics?
  6. 15. What is the only metal that is liquid at STP?
  7. 16. What property describes the attraction of electrons by a nucleus?
  8. 18. What elements are generally shiny, malleable, and good conductors?
  9. 19. What property describes the energy needed to pull one electron from a neutral gas atom?
  10. 20. What is a horizontal row on the periodic table?
Down
  1. 2. A group of the periodic table is known as what else?
  2. 3. What kind of bond involves a transfer of electrons?
  3. 5. What elements are generally dull, brittle, and poor conductors?
  4. 7. What property describes the size of an ion?
  5. 8. In terms of electron shells, what do atoms "want" to form?
  6. 10. What group has no electronegativity?
  7. 12. How many valence electrons do alkaline earth metals contain?
  8. 13. What is the only nonmetal that is liquid at STP?
  9. 14. What has properties of both metals and nonmetals?
  10. 17. What group contains the most reactive nonmetals?