The table shows the electron arrangements of elements P and Q.
| Element | Electron arrangement |
|---|---|
| P | 2.8.2 |
| Q | 2.7 |
Four atoms of P react completely with atoms of Q to form an ionic compound.
How many ions of Q are formed, and how many electrons are transferred in total?
Explain your answer.
122 exam-style questions on OCR GCSE Chemistry 2.2 Bonding, covering 2.2.1 Metals, non-metals and the Periodic Table, 2.2.2 Types of chemical bonding and dot and cross diagrams, 2.2.3 Limitations of bonding models, and 2.2.4 Reactivity, atomic number and the modern Periodic Table. Each one has a worked solution and a mark scheme showing where the marks go.