PPT Slide
- The various types of solids are defined by the type of particles in the crystal and the interparticle forces.
- Individual atoms held together by dispersion forces form an atomic solid.
- The noble gases [Group 8A(18)] are the only examples of atomic solids; their physical properties reflect the weakness of the interparticle forces.
- Atomic solids crystallize in closest packing arrangement.
- Cubic closest packing of frozen argon. Same as the face-centered cubic unit cell.
- In the many thousands of molecular solids, the lattice points are occupied by individual molecules.
Notes: