PYQ NEET- The F And D Block Elements L-7
Question: $\mathrm{Zr}(\mathrm{Z}=40)$ and $\mathrm{Hf}(\mathrm{Z}=72)$ have similar atomic and ionic radii because of :
A) Having similar chemical properties
B) Belonging to same group
C) Diagonal relationship
D) Lanthanoid contraction