Lithium oxide is an ionic compound formed when two lithium atoms react with one oxygen atom.
The electron arrangements before the reaction are shown in the table.
| Atom | Electron arrangement |
|---|---|
| lithium | 2.1 |
| oxygen | 2.6 |
Describe the changes in electron arrangement when the ions in lithium oxide form.
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.