Element Crossword

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Across
  1. 3. Which period of the periodic table corresponds with Calcium (Ca)
  2. 5. The elements that touch the zigzag line (staircase) of the periodic table
  3. 8. Believed empty space did not exist
  4. 10. The element with 8 protons
  5. 11. Rutherford and the gold foil experiment discovered this
Down
  1. 1. Number of groups on the periodic table
  2. 2. Br
  3. 4. Ne
  4. 5. Group eleven
  5. 6. Ar
  6. 7. Number of periods on the periodic table
  7. 9. Atomic mass of eleven