A) \[Y{{b}^{+3}}<P{{m}^{+3}}<C{{e}^{+3}}<L{{a}^{+3}}\]
B) \[C{{e}^{+3}}<Y{{b}^{+3}}<P{{m}^{+3}}<L{{a}^{+3}}\]
C) \[Y{{b}^{+3}}<P{{m}^{+3}}<L{{a}^{+3}}<C{{e}^{+3}}\]
D) \[P{{m}^{+3}}<L{{a}^{+3}}<C{{e}^{+3}}<Y{{b}^{+3}}\]
Correct Answer: A
Solution :
Due to Lanthanoid contraction order will be \[Y{{b}^{+3}}<P{{m}^{3+}}<C{{e}^{+3}}<L{{a}^{3+}}\]You need to login to perform this action.
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