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NEET · Chemistry · Lanthanide or Actinide

Exercise and reference answers

Items
  1. Item
    Cerium (Ce)
    Answer
    left
  2. Item
    Uranium (U)
    Answer
    right
  3. Item
    Neodymium (Nd)
    Answer
    left
  4. Item
    Thorium (Th)
    Answer
    right
  5. Item
    Europium (Eu)
    Answer
    left
  6. Item
    Plutonium (Pu)
    Answer
    right
Categories
Left
Lanthanide (4f)
Right
Actinide (5f)
Instructions
Sort each inner-transition element: lanthanide or actinide?
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