E2 solutions: Atomic models
1. Schrödingers model predicts that the energy of an atomic electron is equal to -k/n2 where k is a constant and n an integer. If the energy required to take an electron from it's ground state (n=1) and remove it from the atom (n = ∞) is 13.6eV. Show that the wavelength of em radiation emitted when an electron changes from n=4 to n=2 is 486nm. Solution