Ce 3 + , La 3 + , Pm 3 + and Yb 3 + have ionic radii in the increasing order as:
Chemistry · NEET · NTA Exams — d- and f- Block Elements
Ce3+, La3+, Pm3+ and Yb3+ have ionic radii in the increasing order as:
- La3+ < Ce3+ < Pm3+ < Yb3+
- Yb3+ < Pm3+ < Ce3+ < La3+
- La3+ = Ce3+ < Pm3+ < Yb3+
- Yb3+ < Pm3+ < La3+ < Ce3+
Answer
(A) La 3 + < Ce 3 + < Pm 3 + < Yb 3 +
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