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Published on: August 14, 2026
The correct order of ionic radii of Y 3+ , La 3+ , Eu 3+ and Lu 3+ is
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The correct order of ionic radii of Y 3+ , La 3+ , Eu 3+ and Lu 3+ , is Y 3+ < Lu 3+ < Eu 3+ < La 3+ becuase Eu and Lu are the members of lanthanide series (so they show lanthanide contraction) and La is the representative element of all elements of such series and Y 3+ ion has lower radii as comparison to La 3+ because it lies immerdiately above it in the periodic table.
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