The trivalent ion having largest size in foll | vedclass

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The Lanthanide series starts from $La$ and thus $La ^{3+}$ will have the largest size because we know on moving across the period from left to right t

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$La$

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The Lanthanide series starts from $La$ and thus $La ^{3+}$ will have the largest size because we know on moving across the period from left to right the size decreases in Lanthanide and thus the same will be similar for the trivalent ions.

The trivalent ion having largest size in following is

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