this electron isn’t like a little planet going in a circle—it’s more like a fuzzy, invisible cloud that can pop up anywhere around you. Sometimes it’s very close, sometimes it’s farther away, and sometimes—very rarely—it even shows up right where you are, inside the nucleus

Over time, as you keep watching, you notice a pattern. The electron doesn’t stay in one place, but it seems to spend more time at a certain distance from you—not too close, not too far. That distance is called the Bohr radius (like a “comfort zone” for the electron). But there’s no sharp edge—it’s like a fading fog that’s thicker in some places and thinner in others.