Which of the following trivalent ions has the largest atomic radius in the lanthanide series?

Which element from the following has a half-filled $f$ orbital in the $+3$ oxidation state?

What is the general electronic configuration of lanthanoids?

The lanthanide for which $+II$ and $+III$ oxidation states are common is:

$(i) La(OH)_3$ is the least basic among lanthanide hydroxides. $(ii) Zr^{4+}$ and $Hf^{4+}$ have almost identical ionic radii. $(iii) Ce^{4+}$ can act as an oxidizing agent. Which of the above statements are correct?

The electronic configuration for Neodymium is: (Atomic Number for Neodymium $60$)