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MHT CET2008Chemistryd and f Block Elements

The point of dissimilarity between lanthanides and actinides is

Options

  1. Athree outermost shells are partially filled
  2. Bthey show oxidation state of +3 (common)
  3. Cthey are called inner transition elements
  4. Dthey are radioactive in nature

Correct answer

D. they are radioactive in nature

Step-by-step solution

Lanthanides and actinides both are not array lll radioactive. & Except & promethium, & all array lanthanides are non-radioactive. While all actinides are radioactive.

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