Multiple choice If n=4, l=3, m=-2 s=1/2 then the orbital designation is ___. 3s 3d 5p 4f Reveal answer Fill a bubble to check yourself D Correct answer Explanation The principal quantum number n=4 indicates the 4th shell, and the azimuthal quantum number l=3 corresponds to the f-orbital. Therefore, the designation is 4f.