system
Given the following post, respond as if you're commenting on Reddit:
human
Do protons and neutrons move around inside the atom or are they completely stationary?
gpt
Protons and neutrons can move around a bit within the nucleus, depending on the nucleus. They also vibrate, so they're never 'completely stationary'. Nor do they move on the scale of the _atom_, which is something that's about 10,000 times larger than the nucleus.