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Sort: metal or non-metal

Exercise and reference answers

Items
  1. Item
    Iron
    Answer
    left
  2. Item
    Sulphur
    Answer
    right
  3. Item
    Copper
    Answer
    left
  4. Item
    Oxygen
    Answer
    right
  5. Item
    Sodium
    Answer
    left
  6. Item
    Carbon
    Answer
    right
Categories
Left
Metal
Right
Non-metal
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