Though the five d-orbitals are degenerate, the first four d-orbitals are similar to each other in shape whereas the fifth d-orbital is different from others. What is the name of the fifth orbital?

Question

Though the five d-orbitals are degenerate, the first four d-orbitals are similar to each other in shape whereas the fifth d-orbital is different from others. What is the name of the fifth orbital? (A) dx2-y2 (B) dz2 (C) dxz (D) dxy

Tardigrade Admin · Accepted Answer

The five d-orbitals are d xy , d yz , d zx , d x 2- y 2, d Z 2 and have shapes as given in the figure. It is clear that d Z 2-orbital has one lobe along z axis and donut-shape electron ring while all other d-orbitals have two dumbells. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/chemistry/45f79197e78e6a3e79ab103526901f51-.png" />

Q. Though the five $d$ -orbitals are degenerate, the first four $d$ -orbitals are similar to each other in shape whereas the fifth $d$ -orbital is different from others. What is the name of the fifth orbital?

$d_{x^{2} - y^{2}}$

$d_{z^{2}}$

$d_{x z}$

$d_{x y}$

The five $d$ -orbitals are $d_{x y}, d_{yz}, d_{z x}, d_{x^{2} - y^{2}}, d_{Z^{2}}$
and have shapes as given in the figure. It is clear that $d_{Z^{2}}$ -orbital has one lobe along $z$ axis and donut-shape electron ring while all other d-orbitals have two dumbells.

Q. Though the five d-orbitals are degenerate, the first four d-orbitals are similar to each other in shape whereas the fifth d-orbital is different from others. What is the name of the fifth orbital?

dx2−y2​

dz2​

dxz​

dxy​