Atoms contain even smaller subatomic particles: protons, neutrons, and electrons.
Draw one line from each subatomic particle to its correct relative electrical charge.
| Subatomic Particle | Relative Charge | |
|---|---|---|
| Electron | +1 | |
| Neutron | 0 | |
| Proton | -1 |
120 exam-style questions on Edexcel GCSE Chemistry 2.1 Atomic structure, covering 2.1.1 Development of the atomic model, 2.1.2 Structure of the atom and subatomic particles, 2.1.3 Mass number, isotopes and relative atomic mass, and 2.1.4 Calculating relative atomic mass from isotopic abundance. Each one has a worked solution and a mark scheme showing where the marks go.