A molecule contains one carbon atom and two oxygen atoms. Each oxygen atom is bonded only to the carbon atom.
| Atom | Number of electrons contributed to shared pairs | Number of unshared outer-shell electrons |
|---|---|---|
| Carbon | 4 | 0 |
| Each oxygen | 2 | 4 |
Use the information in the table to explain the type of covalent bond between the carbon atom and each oxygen atom, and how every atom has eight electrons in its outer shell.
98 exam-style questions on AQA GCSE Chemistry 2.1 Chemical bonds, ionic, covalent and metallic, covering 2.1.1 Chemical bonds, 2.1.2 Ionic bonding, 2.1.3 Ionic compounds, 2.1.4 Covalent bonding, and 2.1.5 Metallic bonding. Each one has a worked solution and a mark scheme showing where the marks go.