Periodic Table

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Across
  1. 4. The first alkali metal
  2. 5. The number of periods in the periodic table
  3. 8. The group the consists of very unreactive gases
  4. 9. Horizontal rows in a periodic table
  5. 10. most metals are in this state
Down
  1. 1. Another name for groups
  2. 2. Who created the first periodic table
  3. 3. The number of groups in the periodic table
  4. 6. The staircase that separates metals from nonmetals begins below this element
  5. 7. Group 17 elements