This video lecture from Atomic Structure (F.Sc. First Year Chemistry) covers the derivation of the expression of energy of the different orbits of Hydrogen atom according to the Bohr’s atomic model. The relation suggests that energy increases when going away from the nucleus of the atom. 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.