* Atoms and Molecules: Solids are made up of atoms or molecules that are tightly packed together.
* Low Kinetic Energy: The particles in a solid have a low amount of kinetic energy, which is the energy of motion. This means they vibrate in place but do not have enough energy to move freely.
* Attractive Forces: The strong attractive forces between the particles in a solid hold them in a fixed, rigid structure. These forces can be ionic bonds, covalent bonds, or metallic bonds.
Key Characteristics of Solids:
* Definite Shape: Solids maintain a fixed shape because the particles cannot move freely.
* Definite Volume: Solids have a constant volume because the particles are tightly packed.
* Incompressibility: Solids are very difficult to compress because the particles are already close together.
* Low Thermal Expansion: Solids expand very little when heated because the particles are already close together.
Let me know if you'd like to learn more about other states of matter!
