Because the particles of a solid are tightly packed
Why Does A Solid Have A Definite Shape?
I don't know much but here's my answer anyway. A solid's molecules are tightly packed together, making it hard form them to move. Therefore, their shape and volume always stay the same. Hope that helped! :)
Because they are very close together, have small amount of energy, keeps a specific size and shape
There are three states of substances- solids, liquids and gases. Solids have a definite shape while liquids and gases do not. The shape of a solid or any other substance results form the molecular or atomic forces acting inside a solid. These forces give a shape to the solid. The molecules are arranged in specific shape and have fixed positions with respect to each other. Thus, the atoms or molecules are held together in a particular shape. These forces are not observed among liquid and gases molecules.
Every atom of solid or any other substance is constantly in vibration. This is due to the thermal energy in solids. This vibrational energy is also very low in the atoms or molecules of solids. All these factors give a definite shape to a solid.
Every atom of solid or any other substance is constantly in vibration. This is due to the thermal energy in solids. This vibrational energy is also very low in the atoms or molecules of solids. All these factors give a definite shape to a solid.