Chemistry 9701 · 9 The Periodic Table: chemical periodicity
9.2 Periodicity of chemical properties of the elements in Period 3
Describe reactions of Period 3 elements, oxides, and chlorides with water/oxygen/chlorine, explaining acid-base behavior.
- Questions
- 167
- Years
- 2015–2026
- Multiple choice
- 108
- Written answer
- 59
- Average marks
- 5.5
Practise the periodic table: chemical periodicity questions with instant markingTeachers: build a worksheet from past papers
Where this subtopic appears
- Paper 1variants 11, 12, 13108
- Paper 2variants 21, 22, 23, 2430
- Paper 3variants 31, 32, 33, 34, 35, 3623
- Paper 4variants 41, 42, 436
Questions by year
| Year | Feb/March | May/June | Oct/Nov | Total |
|---|---|---|---|---|
| 2026 | – | 9 | – | 9 |
| 2024 | – | – | 1 | 1 |
| 2023 | 2 | 8 | 5 | 15 |
| 2022 | 4 | 8 | 7 | 19 |
| 2021 | 2 | 8 | 7 | 17 |
| 2020 | 3 | 7 | 11 | 21 |
| 2019 | 2 | 10 | 11 | 23 |
| 2018 | 3 | 10 | 8 | 21 |
| 2017 | 4 | 4 | 9 | 17 |
| 2016 | 2 | 5 | 5 | 12 |
| 2015 | – | 5 | 7 | 12 |
