MCQ
Which element among the Lanthanides has the smallest atomic radius?
- ACerium.
- BLutetium.
- CEuropium.
- DGadolinium.
Explanation:
Lutetium is the last element of the Lanthanides, so it will have the smallest ionic radius due to Lanthanide contraction.
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(At. nos. $Ti = 22,\,Cr = 24,$ $ Mn = 25,\,Ni = 28$)
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