An $e^-$ has a magnetic quantum number $(m_l)$ of $-3$. What is the minimum possible principal quantum number $(n)$ for this electron?

The $71^{st}$ electron of an element $X$ with an atomic number of $71$ enters into the orbital:

What is meant by electronic configuration?

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.

For which of the following sets of quantum numbers,an electron will have the highest energy?

The principal quantum number represents: