Atoms choice board

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Across
  1. 3. vertical columns
  2. 5. negative charge
  3. 7. the weight of something
  4. 8. divised a pattern in the 1800s
  5. 11. 75% of the periodic table
  6. 14. element that has physical and chemical properties
  7. 15. doesn't have shape or volume
Down
  1. 1. positive charge
  2. 2. elements with no metallic properties
  3. 4. represents the short version on the periodic table
  4. 6. horizontal rows
  5. 9. item that can't be easily broken into smaller pieces
  6. 10. no charge
  7. 12. smallest particle of an element
  8. 13. retains a shape and density