Atoms are composed of subatomic particles, each characterized by a specific relative mass and relative electrical charge.
Draw one line from each subatomic particle to its correct combination of relative mass and relative charge.
| Subatomic Particle | Relative Mass and Charge | |
|---|---|---|
| Electron | Relative mass of 1, relative charge of +1 | |
| Neutron | Relative mass of 11840\displaystyle \frac{1}{1840}18401, relative charge of -1 | |
| Proton | Relative mass of 1, relative charge of 0 |
87 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.