Science

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Across
  1. 3. A element with the symbol of Y.
  2. 6. A element with the symbol of Au.
  3. 8. positive charge.
  4. 11. A element with the symbol of I.
  5. 13. A element with the symbol of F.
  6. 14. A element with the symbol of Ir.
  7. 15. Two or more atoms connected.
  8. 16. A element with the symbol of Co.
  9. 17. A element with the symbol of Li.
Down
  1. 1. H2O.
  2. 2. A element with the symbol of C.
  3. 4. A element with the symbol of Fe.
  4. 5. Two or more elements combined.
  5. 7. A element with the symbol of Rn.
  6. 8. A element with the symbol of Pt.
  7. 9. A element with the symbol of S.
  8. 10. A particle of matter.
  9. 12. A substance that cannot be broken down into simpler components at all.
  10. 16. A element with the symbol of Cr.
  11. 18. A element with the symbol of H.