Erm, you are the one that doesn't seem to understand what the word "or" means...Please Register or Log in to view the hidden image! How very intellectually honest and mature of you! And I think you got the two of us mixed up. You have demonstrated in this very thread a lack of understanding of the radius of fundamental particles, Planck length, the concept of a minimum value, and the role of gravity in the quantum domain. What applicability issue? Also, that is irrelevant, because I'm not talking about the Bohr model as it applies in this specific case; I'm using it as an example, an analogue. Source please. And I'm talking specifically about a source that shows that the electron can be in a stable situation closer to the nucleus, because that's what we are talking about. Please provide a source or calculation which gives the value of Z needed for the electron orbital with any arbitrary radius. Aha, so you do know I'm just using it as an example! Now I'm really confused as to what your "applicability issue" is about? I have never claimed there is a "connect"? In English, the word "analogue" means that I'm going to use a similar situation to describe the currently-under-discussion one. This similar situation will have some feature(s) that are very much like the one under discussion, but this does not imply there is a connection or direct relationship between the two. Yes, and these do not explain the electron orbitals at all. In fact, they predict that all atoms are extremely unstable, and that the electron will spiral into the nucleus. Yet, that doesn't happen. This is very basic knowledge if you look up how atoms "work". Why are you showing a lack of understanding of the subject? Yes, they indeed are. In English, the term "for example" means (in this specific case) that I'm going to use arbitrary values for illustrative purposes; the actual values themselves are just picked at random. They don't mean anything. It's the demonstration of their usage that's important, not their values. I will "desist teaching English" once you do not need to have basic English words explained to you. And I have seen you have once again chosen to ignore most of my post, including critical parts where I point out your mistakes and errors. Indeed, how very intellectually honest and mature of you!