Which term describes distortion or deformation in a crystal lattice?

Which term describes distortion or deformation in a crystal lattice?

• A. The force required to fracture a crystal.
• B. Distortion or deformation in a crystal.
• C. The color variations in gems.
• D. The arrangement of atoms in a lattice.

Answer: (B)

Lattice strain is the term that describes distortion or deformation of a crystal lattice. It measures how much the regular spacings and angles between atoms are altered when a crystal is subjected to stress or defects. Strain can be elastic, meaning the lattice returns to its original state when the force is removed, or plastic, meaning the change is permanent. This directly captures the idea of distortion in the lattice, unlike the force to fracture (which relates to strength), color variations (due to impurities or defects affecting color), or the arrangement of atoms itself (the lattice, not its distortion).

Lattice strain is the term that describes distortion or deformation of a crystal lattice. It measures how much the regular spacings and angles between atoms are altered when a crystal is subjected to stress or defects. Strain can be elastic, meaning the lattice returns to its original state when the force is removed, or plastic, meaning the change is permanent. This directly captures the idea of distortion in the lattice, unlike the force to fracture (which relates to strength), color variations (due to impurities or defects affecting color), or the arrangement of atoms itself (the lattice, not its distortion).