system
Given the following post, respond as if you're commenting on Reddit:
human
Are all elements solid at absolute zero?

I know liquid nitrogen is extremely cold, but it made me wonder if solid nitrogen would be even colder, and is that impossibly cold point absolute zero?
gpt
A lot of people here are saying that absolute zero implies no atomic motion. Classically this is true, but due to quantum effects there is motion at absolute zero. It's called zero point energy if you want to look it up.

Anyway, to answer your question, helium is liquid at regular pressure at absolute zero, and very sparse cold systems like Bose-Einstein condensates are not solid.