Chemistry · d- and f-Block Elements
The correct decreasing order of ionic radii of the given trivalent lanthanide ions is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Tb3+ > Ho3+ > Dy3+ > Yb3+
- 2Nd3+ > Gd3+ > Ho3+ > Tm3+✓
- 3Sm3+ < Ho3+ < Gd3+ < Lu3+
- 4Tb3+ > Sm3+ > Tm3+ > Yb3+
Correct answer
Nd3+ > Gd3+ > Ho3+ > Tm3+
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