Chemistry- elements

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Across
  1. 2. Mass number is 12
  2. 4. Atomic Number is 1
  3. 6. Chemical Symbol is Si
  4. 8. Mass number is 24
  5. 9. Chemical symbol is Li
  6. 10. Chemical symbol is O
Down
  1. 1. Chemical symbol is B
  2. 3. Atomic number is 9
  3. 4. Atomic number is 2
  4. 5. Atomic number is 7
  5. 7. Mass number is 19