Answer: 14.
- A 14
- B 7
- C 32
- D 230
Correct answer: A. 14
Explanation: Crystals are grouped into 7 crystal systems, which give rise to a total of 14 distinct Bravais (space) lattices.
The three cubic unit cells: Simple Cubic has atoms only at corners; Body-Centred adds one atom at the centre; Face-Centred adds one atom at the centre of each of the 6 faces, giving the highest packing efficiency.
Concept context
Explore the ordered world of crystalline solids: unit cells, packing, defects, and how structure determines electrical and magnetic properties.