A neutral atom loses two electrons to form an ion. The table shows information about the atom.
| Quantity | Information |
|---|---|
| Mass number | 65 |
| Number of neutrons | 7 greater than the number of protons |
Calculate the number of electrons in the ion.
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.