1. The problem statement, all variables and given/known data How much energy is required to remove an electron from a hydrogen atom in a state with n = 8? 2. Relevant equations E = - (1 / 4pi*epsilon_0)(me^4/2(h-bar)^2)(1/n^2) Where E is the total energy of the electron. 3. The attempt at a solution I know that if you solve the above equation for the ground state (n = 1), the binding energy of the electron is equal to E, but I'm not so sure about excited states. Do I merely solve the above equation for n = 8, or is there something I'm missing?