MCQ
Which of the following has smallest ionic radius ?
- A$Nd^{3+}$
- B$Dy^{3+}$
- ✓$Lu^{3+}$
- D$Pm^{3+}$
✓
Answer
Correct option: C.
$Lu^{3+}$
As we move from left to right in a raw, radii decreases.
So radii of $Lu^{+3}$ is smallest among all.
So radii of $Lu^{+3}$ is smallest among all.
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