In a computer simulation, a positron and a proton are each given values for their relative mass and relative charge.
Which statement correctly compares the positron with the proton?
The positron has the same relative charge and the same relative mass.
The positron has the opposite relative charge and a much smaller relative mass.
The positron has the same relative charge and a much smaller relative mass.
The positron has the opposite relative charge and the same relative mass.
103 exam-style questions on Edexcel GCSE Physics 6.1 Atomic structure and isotopes, covering 6.1.1 Structure of the atom, 6.1.2 Isotopes: atomic and mass number, 6.1.3 Sub-atomic particles: masses and charges, and 6.1.4 Electron orbits and energy changes. Each one has a worked solution and a mark scheme showing where the marks go.