Question

89. The correct order of atomic radii is:
(a) Yb3+ < Pm3+ < Ce3+ < La3+
(b) Ce3+ < Yb3+ < Pm3+ < La3+
(c) Yb3+ < Pm3+ < La3+ < Ce3+
(d) Pm3+ < La3+ < Ce3+ < Yb3+
please give a detailed explanation ​

Answer 1

Answer:

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