Gas-phase atoms of which element has an occupied 5$d$. Orbital in their ground state?

Gas-phase atoms of which element has an occupied 5$d$. Orbital in their ground state is $\mathrm{Ir}(Z=77)$.

The ground state configuration of electron for gaseous neutral iridium is [Xe]. $4f^{14}. 5d^7.$

From the ground state electron configuration, it is observed that iridium occupies the d orbital in their ground state. 

Hence, iridium has an occupied 5d orbital in their ground state.