periodic table

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Across
  1. 3. bromine at room temperature
  2. 5. An element you need to breath
  3. 8. Name a group in the periodic table
  4. 9. The atomic mass of carbon
  5. 10. the atomic number of sodium
Down
  1. 1. What atomic number splits the table
  2. 2. the 1st element in the periodic table
  3. 4. the element with the chemical symbol of Fe
  4. 6. The 10th element in the periodic table
  5. 7. the element with the chemical symbol Mg