Physics (AS & A Level) · May / June 2024 · Paper 13 · Question 13

The diagram shows the arrangement of atoms in a particular crystal. Each atom is at the corner of a cube. The mass of each atom is 3.5 × 10⁻²⁵ kg. The density of the crystal is 9.2 × 10³ kg m⁻³. What is the shortest distance between the centres of two adjacent atoms?

1. A3.8 × 10⁻²⁹ m
2. B6.2 × 10⁻¹⁵ m
3. C3.4 × 10⁻¹⁰ m
4. D3.0 × 10⁻⁹ m

As printed in the paper