A) \[{{Y}^{3+}}<L{{a}^{3+}}<E{{u}^{3+}}<L{{u}^{3+}}\]
B) \[L{{u}^{3+}}<E{{u}^{3+}}<L{{a}^{3+}}<{{Y}^{3+}}\]
C) \[L{{a}^{3+}}<E{{u}^{3+}}<L{{u}^{3+}}<{{Y}^{3+}}\]
D) \[{{Y}^{3+}}<L{{u}^{3+}}<E{{u}^{3+}}<L{{a}^{3+}}\]
E) \[E{{u}^{3+}}<L{{a}^{3+}}<L{{u}^{3+}}<{{Y}^{3+}}\]
Correct Answer: B
Solution :
Ionic radii of lanthanide \[(L{{a}^{3+}})\]decrease with increase in atomic number. \[L{{u}^{3+}}<E{{u}^{3+}}<L{{a}^{3+}}<{{Y}^{3+}}\]You need to login to perform this action.
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