Question

Assume that configurations consisting of a completely filled or half filled set of $d$-orbitals is spherically symmetrical. The species having spherical symmetry are:

• A. $Zn$
• B. ${Cu}^{+}$
• C. $Pd$
• D. $Cr$

Answer 1

Answer: (A), (B), (C), (D)

The correct options are
A ${Cu}^{+}$
B $Pd$
C $Cr$
D $Zn$

Assume that configurations consisting of a completely filled or half filled set of $d$-orbitals is spherically symmetrical. So, the species having spherical symmetry are $Zn$, ${Cu}^{+}$, $Pd$ and $Cr$ because d orbital is completely filled in $Zn$, ${Cu}^{+}$, $Pd$ and half filled in $Cr$.