Chemistry › Section J · Liquids and solids › Topic J.5
Solids and crystal lattices
Diamond, salt, copper and ice are all solids, yet one cuts glass, one shatters, one bends and one melts in your hand. The kind of particle in a solid, how it is held and how it is stacked explain the differences, and a single repeating box, the unit cell, lets you calculate an atom's size from a measured density.
In this topic
- Crystalline and amorphous solids
- Four kinds of crystalline solid
- Unit cells and counting atoms
- Edge length and atomic radius
- Closest packing
- Worked example: copper's radius and density
- Worked example: which cubic cell is iron?
- Ionic lattices
- Filling holes: the formula from the fraction
- Defects and X-ray diffraction
- Common mistakes to avoid
- Key takeaways
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