Sodium oxide is an ionic compound.
Complete the table to show the arrangement of electrons in the ions formed when sodium and oxygen react to form sodium oxide.
Give the charge on each of the ions.
| Element | Arrangement of electrons in atom | Arrangement of electrons in ion | Charge on ion |
|---|---|---|---|
| Na\text{Na}Na | 2.8.1 | ||
| O\text{O}O | 2.6 |
Explain why sodium oxide conducts electricity when molten.
Explain why sodium oxide has a high melting point.
11 exam-style questions on Edexcel IGCSE Chemistry Ionic bonding. Each one has a worked solution and a mark scheme showing where the marks go.