Final answer:
The particles in region 3, if this refers to a gaseous state, are correctly described as having a lot of space between them. They move freely and are not bound by strong forces, unlike particles in solids or liquids.
Step-by-step explanation:
To describe the particles in region 3, the information provided about states of matter is crucial. For solids, the particles are in a fixed position and close to each other, vibrating without changing their position. In contrast, particles in a liquid are in closer contact and able to slide over each other due to forces that resist compression and maintain contact. Gases have particles that are separated by large distances relative to their size, and they move freely, often requiring a closed container to be contained.
Given this context, if "region 3" refers to the gaseous state, the correct description would be: Particles have a lot of space between them. This statement matches the behavior of gas particles which move about freely, collide elastically, and are separated by large distances, as gas particles are not held together by strong interactive forces and their average speed is influenced by temperature.