A model of an atom treats the atom and its nucleus as spheres. Measurements give these radii:
| Part | Radius (m) |
|---|---|
| Atom | 5.0 × 10-11 |
| Nucleus | 4.0 × 10-15 |
For a sphere, volume is proportional to the cube of its radius.
Calculate the ratio of the nucleus's volume to the atom's volume. What does your answer show about the volume of the atom?
101 exam-style questions on OCR GCSE Chemistry 1.2 Atomic structure, covering 1.2.1 Development of the atomic model, 1.2.2 The nuclear model and the size of atoms, and 1.2.3 Subatomic particles in atoms and ions. Each one has a worked solution and a mark scheme showing where the marks go.