The radius of \( \mathrm{La}^{3+} \) (atomic number: \( \mathrm{La}...

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The radius of \( \mathrm{La}^{3+} \) (atomic number: \( \mathrm{La}=57 \) ) is 1.06
P \( \AA \). Which one of the following given values will be

W closest to the radius of \( \mathrm{Lu}^{3+} \) (atomic number: \( \mathrm{Lu}=71) ? \)
(1) \( 1.60 \AA \)
(2) \( 1.40 \AA \)
(3) \( 1.06 \AA \)
(4) \( 0.85 \AA \)
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