Polymorphs

Definition

Polymorphs are different structural forms of the same element or compound in the solid state. They exhibit distinct physical properties but have the same chemical composition.

5 Must Know Facts For Your Next Test

1. Polymorphs can have different crystal structures, such as cubic, tetragonal, and orthorhombic.
2. The ability of an element or compound to exist as polymorphs is referred to as polymorphism.
3. Silicon dioxide (SiO2) is a common example with polymorphs like quartz, cristobalite, and tridymite.
4. Polymorphs can transition from one form to another under varying temperature and pressure conditions.
5. Differences in polymorph structures can influence material properties such as hardness, solubility, and melting point.

Related terms

Allotrope: Different structural forms of the same element in the same physical state.

Crystal Lattice: A three-dimensional arrangement of atoms or molecules within a crystal.

Amorphous Solid: A solid that lacks a well-defined long-range order typical of crystals.