Question

Zr and Hf have almost equal atomic and ionic radii due to
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Answer 1

Zr and Hf have almost identical atomic radii due to lanthanoid contraction. Hf is post lanthanoid element. As a result of lanthanoid contraction, the atomic size of Hf is similar to Zr (element of previous period).

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Answer 2

Answer:

lanthanoid contraction

Zr and Hf have almost identical atomic radii due to lanthanoid contraction. Hf is post lanthanoid element. As a result of lanthanoid contraction, the atomic size of Hf is similar to Zr (element of previous period).

Explanation:

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