Matter and Elements

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Across
  1. 4. the least reactive family on the periodic table
  2. 5. the symbol in a chemical equation
  3. 7. the middle family on the periodic table
  4. 9. an equation with not equal number of atoms
  5. 10. chemicals after a reaction
Down
  1. 1. the most reactive family on the periodic table
  2. 2. matter can not be destroyed
  3. 3. the building blocks of matter
  4. 6. chemicals before a reaction
  5. 8. equation with an equal number of atoms