* Solid: Molecules are tightly packed and held in a rigid structure. They vibrate in place, but don't move freely.
* Liquid: Molecules are closer together than in a gas, but they can move around and slide past each other. This gives liquids their fluidity.
* Gas: Molecules are far apart and move freely, colliding with each other and the walls of their container.
In summary:
* Solids have the closest molecules due to strong intermolecular forces and rigid structure.
* Liquids have molecules closer together than gases but not as tightly packed as solids.
* Gases have the furthest molecules due to weaker intermolecular forces and free movement.
It's important to remember that even in gases, molecules are still technically "close together" in the grand scheme of things. They just have much more space between them compared to liquids and solids.
