solid state chemistry

1. NaCl crystal

• Ionic crystals

• Covalent crystals

• Metallic crystals

2.naphthalene

• Ionic crystals

• Covalent crystals

• molecular crystal

3.Solids have strong cohesive forces.

• true

• false

4.Crystalline solids are

• anisotropic

• isotropic

5.A unit cell

that contains only one lattice point is

• primitive

• non-primitive

• unit cells,