Chemistry: The Periodic Table

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Across
  1. 4. Scientist who put together the first version of the Periodic Table
  2. 6. The total number of protons and neutrons in an atom
  3. 7. Salt produced when Calcium reacts with Nitric Acid
  4. 10. Metal that is not solid at room temperature
  5. 11. The most abundant gas in air
Down
  1. 1. Another name for Group 0/8
  2. 2. Element in Group 5
  3. 3. A horizontal row in the Periodic Table
  4. 5. This increases as you go down Group 1
  5. 7. Cu is the symbol for which element?
  6. 8. Another name for Group 1
  7. 9. A pale yellow gas at room temperature