Chapter 1 & 2 Crossword

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Across
  1. 4. Two or more elements bond together
  2. 9. The outer shell electrons
  3. 11. Right side of the chemical equation
  4. 13. A type of reaction where elements split apart into two or more parts
  5. 15. A reaction that requires oxygen to survive
  6. 16. Left side of the chemical equation
  7. 17. The building blocks of a compound
  8. 18. The smallest particle that has the properties of an element
Down
  1. 1. A reaction where positive ions and negative ions of two ionic compounds switch partners
  2. 2. A type of reaction where one element replaces another element in a compound
  3. 3. A type of reaction that combines elements together into one thing
  4. 5. Positively charged particle
  5. 6. The rule for the number of electrons in an outer shell
  6. 7. The number that comes after the element symbol and is permanent
  7. 8. Negatively charged subatomic particle
  8. 10. The name of the arrow that separates both sides of a chemical equation
  9. 12. Subatomic particle with a neutral charge
  10. 14. A number that comes before the element symbol and can be changed when balancing chemical equations