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NEETChemistryd and f Block Elements

Which two elements have almost identical radii due to the lanthanoid contraction?

Options

  1. ALa and Lu
  2. BZr and Hf
  3. CSc and Y
  4. DBa and Ra

Correct answer

B. Zr and Hf

Step-by-step solution

The almost identical radii of Zr (160 pm) and Hf (159 pm), a consequence of the lanthanoid contraction

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