Periodic Table

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Across
  1. 2. Metals that have 1 valence electron
  2. 7. A bond formed when a nonmetal and metal bond
  3. 10. The number of protons in the nucleus
  4. 12. Metals used in coins and jewelry
  5. 13. When the outer ring only needs one electron to be full
  6. 14. Located right of the stairstep line
  7. 15. This element's symbol is "Na"
  8. 16. This element's symbol is "Au"
  9. 17. This element is needed to breath
  10. 19. This element's symbol is "K"
Down
  1. 1. Located at group 17, period 2
  2. 3. The rows on the periodic table
  3. 4. When an atom has a charge
  4. 5. Positive ions
  5. 6. Contains iron, cobalt, and nickel
  6. 8. A bond formed when two nonmetals bond
  7. 9. Located left of the stairstep line
  8. 11. Along the stairstep line
  9. 14. Gases that are found in group 18
  10. 18. The columns on the periodic table