Periodic Table

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Across
  1. 1. element with relative atomic mass 119
  2. 5. first element in group 0
  3. 6. element with atomic symbol Fe
  4. 8. element with relative atomic mass 139
  5. 9. element with relative atomic mass 16
Down
  1. 2. element with atomic number 53
  2. 3. element with the atomic number 37
  3. 4. element with atomic symbol W
  4. 7. element with atomic symbol Ar