Solids have the least energetic ratio. Every particle has its own energy, but there are differences in the level of energy depending on the temperature in which the particle is in. In turn, this gives a determinant on the nature of existence of the substance, whether it be in a liquid, solid, or gaseous state.
Now, the molecules that are present in the gaseous state are known to have a high amount of energy, the greatest amount precisely. In contrast, the molecules that are present in solid-state are known to have the least amount of energy.
In the solid-state, molecules are known to be arranged in such a regular and repeating pattern. In solid particles, the molecules are closely packed, which makes them only vibrate on a spot, but unable to move from one place to the other, and this characteristic makes them have the least kinetic energy. Examples are the solid states of water (ice), copper, helium gas, etc.