periodic table crossword

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Across
  1. 3. how many particles were in 1700?
  2. 4. how many classes on periodic table?
  3. 5. atoms with a charge
  4. 6. Positive Charge
  5. 9. Behavior Can Be Controlled by Conditions
  6. 11. who organized by Increasing Atomic mass?
Down
  1. 1. who organized by similar properties?
  2. 2. Generally Poor Conductors, Brittle, Gas at Room Temp.
  3. 7. negative charge
  4. 8. smallest particle of a substance with properties of that substance
  5. 10. Good Conductors of Heat & Electricity, High Luster, Ductile, Malleable, Solid At Room Tem