lanthanoid shows general oxidation state +3 but some elements can shows +2 as well as +4. So the given option is wrong.
Identify the incorrect statement from the following:
Held on 30 Apr 2020 · Verified 9 Jul 2026.
Zirconium and Hafnium have identical radii of 160pm and 159pm, respectively as a consequence of lanthanoid contraction.
lanthanoid reveal only +3 oxidation state.
The lanthanoid ions other than the f0 type and the f14 type are all paramagnetic.
The overall decrease in atomic and ionic radii
from lanthanum to lutetium is called lanthanoid
contraction.
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