The table shows the electronic structures of four elements, E, G, J and L.
| Element | Electronic structure |
|---|---|
| E | 2.1 |
| G | 2.8.1 |
| J | 2.7 |
| L | 2.8.7 |
Which two elements would react together most vigorously, and what is the formula of the compound formed?
G and J; formula GJ\mathrm{GJ}GJ
E and L; formula EL\mathrm{EL}EL
G and L; formula GL\mathrm{GL}GL
E and J; formula EJ\mathrm{EJ}EJ
60 exam-style questions on OCR GCSE Chemistry 4.1 Predicting chemical reactions, covering 4.1.1 Properties and trends in Groups 1, 7 and 0, 4.1.2 Properties of the transition metals, 4.1.3 Reactivity predicted from position in the Periodic Table, and 4.1.4 Reactivity of metals and the reactivity series. Each one has a worked solution and a mark scheme showing where the marks go.