Chemistry Crossword

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Across
  1. 5. The simplest unit of matter
  2. 6. A reaction that gives off heat
  3. 10. Similar charges tend to...
  4. 11. The type of compound formed by a metal and a nonmetal
  5. 12. Type of attraction found between water molecules
  6. 14. Like charges tend to...
  7. 16. A molecule with oppositely charged ends
  8. 17. An electron found in the outermost part of an atom
  9. 18. The neutrally charged particle in an atom
  10. 19. A Chemist's unit for amount
Down
  1. 1. The type of compound formed by two nonmetals
  2. 2. An atom with a "paws-i-tive" charge
  3. 3. A pure substance found on a table
  4. 4. The study of matter and how it changes
  5. 7. A reaction that absorbs heat
  6. 8. When 2 or more substances combine and change
  7. 9. The positively charged particle in an atom
  8. 10. Name of the scientist associated with moles
  9. 12. The lightest element
  10. 13. The negatively charged particle in an atom
  11. 15. Where most of the mass of an atom is located
  12. 17. How much space an object takes up