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Question
The CORRECT order of decreasing ionic radius is:
Options
La3+ > Pr3+ > Gd3+ > Tm3+
La3+ > Gd3+ > Pr3+ > Tm3+
La3+ > Pr3+ > Tm3+ > Gd3+
Tm3+ > Pr3+ > Gd3+ > La3+
MCQ
Solution
La3+ > Pr3+ > Gd3+ > Tm3+
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Trends in Atomic Properties of the First Transition Series
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