Structure Of Atom

All the five 5d orbitals are different in size when compared to the respective 4d orbitals.

All the five 4d orbitals have shapes similar to the respective 3d orbitals.

In an atom, all the five 3d orbitals are equal in energy in free state.

The shapes of d_xy, d_yz and d_zx orbitals are similar to each other; and d_{x² \(-\) y²} and d_z² are similar to each other.