What is a lattice in a crystal?
Quick Answer
A crystal lattice is a repeating three-dimensional arrangement of atoms, ions, or molecules in a solid. It gives crystals their regular shape and many of their properties.
The Full Story
In crystals such as sodium chloride or quartz, particles are arranged in a highly ordered pattern that repeats throughout the solid. This regular structure affects hardness, melting point, cleavage, and how light passes through the material. Different substances can have different lattice types, including ionic lattices, metallic lattices, and covalent-network lattices. The geometry of the lattice helps explain why crystals can form such distinctive shapes.
Key Facts
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Suggested video title for this topic:
"Why crystals grow into such perfect shapes"
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