> Like, why properties of H, He and Ne are such that they are at this part of their diagram at normal conditions? This is the wrong question. You should, rathe

> Like, why properties of H, He and Ne are such that they are at this part of their diagram at normal conditions? This is the wrong question. You should, rather, ask: “under what conditions are things at various parts of the diagram?” “Normal conditions” are really just happenstance, if you're considering physics; stars and the immense void of space are both much more common than room temperature, room pressure.