atomic mass

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Across
  1. 1. Zn (look on periodic table)
  2. 3. Au (look on periodic table)
  3. 5. Pd (look on periodic table)
  4. 7. B (look on periodic table)
  5. 9. Sn (look on periodic table)
  6. 10. Pt (look on periodic table)
Down
  1. 2. In (look on periodic table)
  2. 4. C (look on periodic table)
  3. 6. mass of an atom
  4. 8. one of the smallest things