For which of the following sets of four quantum numbers,an electron will have the highest energy?
$n$ $l$ $m$ $s$

Figure $1$ shows the electron density distribution for a $2s$ orbital. Figure $2$ shows the radial wave function plot for a $2s$ orbital. Which of the following points $(A, B, C, D)$ in Figure $2$ most accurately represents the spherical nodal surface as shown in Figure $1$?

For the given quantum numbers,write the name of the subshell,the values of the magnetic quantum number $(m_l)$,and the number of orbitals:
$(i) \ n = 3, \ l = 2$
$(ii) \ n = 4, \ l = 3$
$(iii) \ n = 2, \ l = 0$
$(iv) \ n = 5, \ l = 1$

Find the number of electrons in the ground state of $Pd$ $(Z = 46)$ with $l = 2$.

What is the atomic number of the element with the maximum number of unpaired $4p$ electrons?

In a potassium atom,the electronic energy levels are in the following order: