“Which particles cannot move freely from their position?”

"Solid particles unlike those in liquids or gases are tightly packed and cannot move freely due to strong intermolecular forces. This fixed arrangement gives solids their definite shape and volume as seen in materials like metal. The limited mobility of solid particles ensures structural stability influencing properties like rigidity. This characteristic is key in material science and engineering. Exploring solid particles’ behavior provides insights into the physical properties of matter and their practical applications."