Periodic Table Crossword

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Across
  1. 4. number Increases from left to right on the table
  2. 5. Represents a different class of elements
  3. 7. Located on the right side of the table
  4. 9. Rows in the periodic table
  5. 10. He created the first periodic table
Down
  1. 1. Element with the simplest atom
  2. 2. All actinides are _______?
  3. 3. The most reactive nonmetal
  4. 6. metals Reactive soft, shiny metals not in nature
  5. 8. The table has this many periods