Periodic table

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Across
  1. 4. gases aren't reactive
  2. 5. Metals are the first part of the periodic table
  3. 6. is what they call the rows of the table
  4. 8. is an element named after the person who popularized the periodic table
  5. 9. are very reactive
  6. 10. in the periodic table are the columns
Down
  1. 1. are a mix of metals and nonmetals
  2. 2. earth metals are the second
  3. 3. metals is the biggest group
  4. 7. make up the periodic table