Science

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Across
  1. 3. atomic number = 28
  2. 4. F
  3. 8. atomic number = 26
  4. 12. Mg
  5. 13. CuCo3
  6. 14. CO2
  7. 15. Substance containing 1 type of atom
Down
  1. 1. MgCl2
  2. 2. Zn
  3. 5. Li
  4. 6. B
  5. 7. K
  6. 9. atomic number = 6
  7. 10. Two or more atoms chemically joined
  8. 11. atomic number = 27
  9. 13. Cu