Question

At its boiling temperature the particles of a liquid are moving so slowly that they begin to form regular patterns. I know this is false, but why is it false?

Answer 1

At its boiling temperature, the kinetic energy per particle increases to the point where it's enough to break their intermolecular bonds (Hence why a gas is far less dense than a liquid, there's not a lot of energy sticking them together). Also, they don't form patterns at all (Each particle has a random motion).

When a liquid starts to move slowly and form patterns, It's because it's stabilizing and therefore it's kinetic energy is decreasing, so It's not actually boiling, it's solidifying.