MHT CET · Chemistry · d and f Block Elements
Identify the element having smallest ionic size in +3 state from following.
- A Nd
- B Ho
- C Sm
- D Lu
Answer & Solution
Correct Answer
(D) Lu
Step-by-step Solution
Detailed explanation
The phenomenon of lanthanide contraction is observed in case of 4 f elements due to an increase in the effective nuclear charge in lanthanides. Thus, the atomic and ionic radii decrease continuously from lanthanum ( \(Z=57\) ) to lutetium \((Z=71)\).
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