Identify the incorrect statement from the following: [Re-NEET 2020]

Lanthanoids reveal only +3 oxidation state.

The lanthanoid ions other than the \(f ^0\) type and the \(f ^{14}\) type are all paramagnetic.

The overall decreases in atomic and ionic radii from lanthanum to lutetium is called lanthanoid contraction.

Zirconium and Hafnium have identical radii of \(\mathrm{160 ~pm}\) and \(\mathrm{159 ~pm}\), respectively as a consequence of lanthanoid contraction.