Atomic Structure Crossword

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Across
  1. 2. The horizontal rows of the periodic table.
  2. 3. A particle that has positive or negative charge.
  3. 8. Lives in the nucleus and has no charge.
  4. 9. __________ number = protons + neutrons
  5. 11. This element in period 3 makes a -2 charge when it becomes an ion.
  6. 13. Elements on the periodic table are arranged in order of ________ number.
  7. 15. An ion that has a positive charge.
  8. 16. Lives in the nucleus and has a positive charge.
  9. 17. The vertical columns of the periodic table.
  10. 18. This element is a metal that has one valence electron and is found in period 3.
  11. 19. Found outside of the nucleus and has a negative charge.
  12. 20. A type of substance that can conduct electricity, is malleable and is shiny.
Down
  1. 1. When an anion and cation are attracted to each other, they form an _________ bond.
  2. 4. This element is a nonmetal in period 2 that does not make ionic bonds.
  3. 5. The identity of an atom; changes when number of protons change.
  4. 6. This element in period 4 makes a +2 charge when it becomes an ion.
  5. 7. The smallest particle of a chemical element that can exist.
  6. 10. An ion that has a negative charge.
  7. 12. This element is in group 7, period 2.
  8. 14. The types of substances found on the right side of the periodic table.
  9. 15. This element is found in diamond.