DENSITY: The solids are typically denser than a liquid or a gas. Molecules in solid are more tightly packed together because of the greater intermolecular forces. Due to this reason solids have highest densities among three states of matter.
RIGIDITY: The molecular arrangement of solids is closely packed due to this solids are not mobile. They exhibit vibration at fixed positions. Therefore solids are rigid in their structure.
DEFORMITY: Solids are deformed by high pressure because when some particles are dislocated, the force of attraction is so strong that the rearranged atoms are held equally well to their new neighbors.
MELTING: When a solid is heated, the kinetic energy of the molecules increase and it overcomes the intermolecular attractions. As a result of this solid starts converting into liquid.
SUBLIMATION: There are some solids which do not melt on heating but directly convert into vapors. Such solids are known as sublime solids and the process itself known as sublimation.
