Number of unpaired electrons in $Fe^{+3}$ $(Z = 26)$ is

Which orbital is represented by the wave function $\Psi_{310}$?

Select the correct statements for quantum numbers.
$(i)$ Magnetic quantum number $(m_l)$ gives information about the spatial orientation of orbitals with respect to the standard set of coordinate axes.
$(ii)$ Electron spin quantum number is represented by '$s$' and has values of $\pm \frac{1}{2}$.
$(iii)$ Principal quantum number $(n)$ determines the size of the orbitals and also,to a large extent,the energy of the orbitals.

The energy of atomic orbitals in a given shell follows the order:

The number of given orbitals which have electron density along the axis is $..........$. $p_{x}, p_{y}, p_{z}, d_{xy}, d_{yz}, d_{xz}, d_{z^2}, d_{x^2-y^2}$

Which of the following electronic configurations has the maximum total spin multiplicity?