Select the correct statement(s):

There will be minimum four atoms of hydrogen atom require during de-excitation from 4th shell to 1st shell to cover all distinct spectral line.

$4\pi r^2{\psi }^2$  vs r plotted for a H-orbital curve contains 3 maxima and 2 angular node then orbital will be 5d.

Number of waves made by an elelctron is two in an orbit where maximum magnetic  quantum number is 2.

The value of $(n+\mathcal{l}+m)$ of last electron in Mg atom is 5.