Periodic Table

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1234567891011121314151617
Across
  1. 3. Au
  2. 4. Atomic Number 29
  3. 5. Weight 32.06
  4. 8. Weight 10.81
  5. 9. Atomic Number 8
  6. 12. Pt
  7. 14. Weight 40.078
  8. 15. Weight 107.87
  9. 16. Atomic Number 28
  10. 17. Metal
Down
  1. 1. Atomic Number 1
  2. 2. Atomic number 19
  3. 4. Symbol C
  4. 6. Co
  5. 7. Na
  6. 10. A particle with a negative charge
  7. 11. A particle with a neutral charge
  8. 12. A particle with a positive charge
  9. 13. Center of an atom
  10. 17. Smallest component in a element