In a solid, the particles (atoms, ions, or molecules) are closely packed and held together by strong interparticle forces (ionic bonds, covalent bonds, metallic bonds, or van der Waals forces). This close packing results in fixed positions for the particles, meaning they vibrate around a fixed equilibrium point.

Here's a breakdown of the distances:

* Short distances: The particles in a solid are much closer to each other than in liquids or gases. This is because of the strong interparticle forces that hold them together.

* Fixed distances: The distances between particles in a solid are fixed and relatively constant. This is why solids have a definite shape and volume.

* Vibrational motion: While the particles in a solid have fixed positions, they are not completely stationary. They vibrate around their equilibrium points, with the amplitude of the vibrations depending on temperature.

* Orderly arrangement: The arrangement of particles in a solid is usually highly ordered and regular. This is reflected in the crystalline structure of many solids.

Key points to remember:

* Closely packed: Particles are close together.

* Strong forces: Interparticle forces are strong.

* Fixed positions: Particles vibrate around a fixed point.

* Short and fixed distances: The distance between particles is short and relatively constant.

Here's an analogy: Imagine a tightly packed box of oranges. The oranges represent the particles in a solid. They are close together, fixed in place, and can only vibrate slightly.