Complete the table below about the properties of three subatomic particles.
| Particle | Relative mass | Charge |
|---|---|---|
| proton | ||
| neutron | ||
| electron |
Answer the following questions based on the particles in the table:
Which of the particles has the smallest mass?
Which two particles make up the nucleus of an atom?
114 exam-style questions on CIE IGCSE Physics 5.1.1a Structure of the atom and ions. Each one has a worked solution and a mark scheme showing where the marks go.