school

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Across
  1. 4. a positive atom charge
  2. 5. whats used in chemistry to show chemical compounds/mixtures
  3. 7. What atoms of the same type are called when grouped together
  4. 10. elements
  5. 11. a building block
Down
  1. 1. a neutral atom charge
  2. 2. what the element letter C stands for
  3. 3. different substances that are non chemically bonded together
  4. 6. anything that has mass and takes up space
  5. 8. a negative atom charge
  6. 9. contains two or more different chemically