Chemistry Crossword

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Across
  1. 3. the element with the symbol Pb
  2. 5. the metalloid with the largest atomic radius
  3. 6. the element with an atomic mass of 58.933
  4. 9. the element named after Ernest Lawrence
  5. 10. the element with 7 electrons in ground state
  6. 11. element number 83
Down
  1. 1. the first element
  2. 2. the noble gas with the smallest atomic mass
  3. 4. the alkali metal with the largest atomic mass
  4. 7. element number 12
  5. 8. the element with the symbol Br