Answer to Question #86347 in Physical Chemistry for Chanchal

Question

Calculate the energy values of the electron in the second orbit of the hydrogen atom. What will be the radius of this orbit

Answer 1

The expression for energy values and the radius of a certain atomic orbit, according to the Bohr model, is: Energy(E) = -13.6 x Z2/n2 eV/atom Radius(r) = 0.529 x Z2/n Ao 1eV=1.6x 10−19J ; For second orbit of hydrogen atom, n=2 and Z=1, so, E = -13.6 x 1/4 = -3.4 eV r = 0.529 x 1/2 = 0.2645 Ao