Elements compounds and mixtures

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Across
  1. 4. anything that takes up space and has mass
  2. 5. A group of 2 or more atoms that are bonded together
  3. 6. an example of a compound
  4. 7. A group of atoms that aren't bonded together
Down
  1. 1. the symbols that stand for a chemical compound
  2. 2. A group of the same atom
  3. 3. a basic building block to life