- 12,971
- 4,997
The question doesn't make sense. What do you mean by "most probable". You can characterize the probability distribution for the relative position observable in many ways. One way is to look at moments, among which the average (expectation value) is the most simple. All you know about observables in quantum theory given the state the system is prepared in are probability distributions for the outcome of measurements of these observables.
Generally the expectation values for the distance between proton and electron in a hydrogen atom gets larger when exciting the atom from its ground state.
Generally the expectation values for the distance between proton and electron in a hydrogen atom gets larger when exciting the atom from its ground state.