What Is a Quantum State?

A quantum state is just a description of the particle like you mean like where is it and what what's it doing? Yeah, exactly. So for small particles that list is not like an infinite list, right? Like it's a list of maybe like five things exactly it depends a little bit on where that particle is An electron in free space doesn't have energy levels the way an electron around a hydrogen atom does Wait, what do you mean by energy? Well, some of these particles can have spin up or spin down or other various weird kinds of spin.