The particle that moves fast enough to overcome most of the attraction between them and so they move independently of one another is called a gas particle.

Here's why:

* Kinetic Energy: Gas particles have high kinetic energy, meaning they move very quickly and possess a lot of energy due to their motion.

* Weak Intermolecular Forces: The attractive forces between gas particles (intermolecular forces) are very weak compared to solids and liquids. This is because gas particles are far apart.

* Independence: The high kinetic energy and weak intermolecular forces allow gas particles to move freely and independently of one another. They are not bound together in a fixed structure like solids or liquids.

Let me know if you have any other questions!