A) \[L{{a}^{3+}}<C{{e}^{3+}}<P{{m}^{3+}}<Y{{b}^{3+}}\]
B) \[Y{{b}^{3+}}<P{{m}^{3+}}<C{{e}^{3+}}<L{{a}^{3+}}\]
C) \[L{{a}^{3+}}=C{{e}^{3+}}<P{{m}^{3+}}<Y{{b}^{3+}}\]
D) \[Y{{b}^{3+}}<P{{m}^{3+}}<L{{a}^{3+}}<C{{e}^{3+}}\]
Correct Answer: B
Solution :
Ionic radii \[\propto \frac{1}{2}\] The values of Z for different elements are as \[Yb=70,\] \[Pm=61,\]\[Ce=58,\]\[La=57\]You need to login to perform this action.
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