Substances!

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Across
  1. 4. has a negative charge
  2. 5. on the periodic table
  3. 7. makes up everything
  4. 8. lots of elements
  5. 10. chemically
Down
  1. 1. NaCl
  2. 2. multiple elements
  3. 3. move apart
  4. 6. has mass
  5. 9. chemically bonded