Periodic Table Vocab Puzzle

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Across
  1. 3. Proton plus neutrons
  2. 6. An atom with charge
  3. 9. The smallest part of an element that retains it's properties
  4. 11. The elements that are in the second column of the periodic table
  5. 13. A form of am element with a different number of neutrons
  6. 15. The electrons on the most out orbital ring
  7. 16. Negatively particle
  8. 18. Found to the right of the of the periodic table
  9. 19. A negatively charged ion
Down
  1. 1. Columns on a periodic table
  2. 2. The number of protons
  3. 4. A bond between nonmetals
  4. 5. Rows on a periodic table
  5. 7. A positively charged ion
  6. 8. A particle with same mass as a proton just without a charge
  7. 10. Elements that are malleable, shiny, and ductile
  8. 12. A model that shows how many rings and electrons an element has
  9. 13. A bond between a metal and a nonmetal
  10. 14. Positively particle
  11. 17. The elements that are in the first column of the periodic table