Carbon dioxide can be made with carbon-12 atoms or with carbon-14 atoms. Each carbon dioxide molecule contains one carbon atom and two oxygen atoms.
| Particle | Relative mass |
|---|---|
| carbon-12 atom | 12.0 |
| carbon-14 atom | 14.0 |
| oxygen atom | 16.0 |
Calculate the percentage increase in relative formula mass when carbon dioxide containing carbon-12 is replaced by carbon dioxide containing carbon-14.
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.