This video lecture from Atomic Structure (F.Sc. First Year Chemistry) covers the Magnetic quantum number and how does it explains the magnetic effect on the lines of the atomic spectrum (Zeeman’s effect), the values of magnetic quantum number and how it explains the orientation of the orbitals in the space or three dimensions. The concept of degeneracy and degenerate orbitals are also illustrated. Find more e-learning material and educational video lectures in Urdu at maktab.pk. These videos are free to use for promotional and commercial purpose by keeping the credits to Maktab.