And that means this idea explains the Poly Exclusion Principle, which states that a maximum two electrons can be placed into any given orbital. Now, this principle also explains Honduras. And what Hungry states is the following. It says that electrons will not go into an occupied orbital occupied by some electron until all the orbitals within that subshell are already filled. So, for example, let's look at the electron configuration of nitrogen. And it's the following two electrons are placed into the one s orbital.