Final answer:
A crystal is formed by arranging its components in a repeating pattern, created through the lattice arrangement of atoms resulting from various types of bonding.
Step-by-step explanation:
Among the choices given, a crystal is formed by arranging its components in a repeating pattern. Atoms arrange themselves in a lattice to create crystals, which can result from ionic, covalent, and metallic bonding. In contrast, a molecule is generally more associated with organic substances and biochemistry, an atom is a single unit of an element, and a compound is a composition of two or more different elements. The arrangement of atoms in a fixed, repeating pattern is essential in the formation of a crystal structure.
Solid metals, network solids like diamond, quartz, or sodium chloride, don't have identifiable molecules but are composed of repeating unit cells. Moreover, glasses as disordered solids, atoms are held together by chemical bonds without the regularity of repeating units found in crystals.