| Select | | View | Download | | 5.1 Elements, atoms and symbols | | |
| 5.2 Structure of an atom | | |
| 5.3 Atomic number and mass number | | |
| 5.4 Isotopes | | |
| 5.5 Relative isotopic mass and relative atomic mass | | |
| 5.6 Electronic arrangement of atoms | | |
| 5.1 Elements, atoms and symbols (bilingual version) | | |
| 5.2 Structure of an atom (bilingual version) | | |
| 5.3 Atomic number and mass number (bilingual version) | | |
| 5.4 Isotopes (bilingual version) | | |
| 5.5 Relative isotopic mass and relative atomic mass (bilingual version) | | |
| 5.6 Electronic arrangement of atoms (bilingual version) | | |
| Atomic structure (combined version) | | |
| Atomic structure (bilingual, combined version) | | |