Question

A completely filled d-orbital ($d^{10}$) is

• A. Spherically symmetrical
• B. Has octahedral symmetry
• C. Has tetrahedral symmetry
• D. Depends on the atom

Answer 1

The correct option is C Has tetrahedral symmetry

$d^{10}$: -

Often tetrahedral complexes limited to form 4 additional bonds (8 additional electrons) by the 18-electron ceiling. Often colorless due to the lack of d to d transitions.

Tetrahedral geometry is common for complexes where the metal has $d^0$ or $d^{10}$ electron configuration.