The stronger the attractive forces the higher the surface tension. Translational motion is restricted. Larger attractive forces than in the liquids. They have a well-defined network called a crystal lattice. Examples are metals, diamond, salts.
Amorphous solids have a random distribution of particles.
Examples are supercooled liquids called glasses, which contain a great deal of disorder. Metallic solids are held together by metallic bonding. The simplest way of looking at it is that you have positive nuclei surrounded by a sea of electrons. A pure metal crystal represents one of the simplest crystal system. All the atoms are the same size.