A standard model of the atom describes a central nucleus containing protons and neutrons. Which row in the table correctly describes the electric charges of a proton and a neutron?
| Charge on proton | Charge on neutron | |
|---|---|---|
| A | positive | neutral |
| B | positive | negative |
| C | negative | neutral |
| D | negative | positive |
Row A
Row B
Row C
Row D
284 exam-style questions on CIE IGCSE Physics 5.1 The nuclear model of the atom, covering 5.1.1a Structure of the atom and ions, 5.1.1b Alpha-particle scattering, 5.1.2a Composition of the nucleus and isotopes, 5.1.2b Proton number, nucleon number and nuclide notation, and 5.1.2c Nuclear fission and nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.