Home › CBSE Class 12 (Science) › Chemistry › The d- and f-Block Elements › The actinoid contraction is greater from element…
The actinoid contraction is greater from element to element because 5f electrons
AShield strongly
BShield very poorly
CAre completely absent
DAre deeply buried
Answer & Solution
Correct answer: B. Shield very poorly
Poor shielding by 5f electrons lets the rising nuclear charge shrink the ions more sharply than in lanthanoids.
Related questions
Metals that readily form homogeneous alloys have radii within aboutMany copper(I) compounds in aqueous solution undergoSubstances that are attracted very strongly by a magnetic field are calledThe spin-only magnetic moment of Mn2+ (five unpaired electrons) is nearlyParamagnetism in transition metal ions arises from the presence ofTransition metals form many complexes owing to small ions, high charge andInterstitial compounds of transition metals are chemicallyCompounds formed when small atoms like H, C or N sit inside metal lattices are