DP Chemistry (last assessment 2024)
Question 21M.2.sl.TZ1.b(ii)
| Date | May 2021 | Marks available | [Maximum mark: 2] | Reference code | 21M.2.sl.TZ1.b(ii) |
| Level | sl | Paper | 2 | Time zone | TZ1 |
| Command term | State | Question number | b(ii) | Adapted from | N/A |
b(ii).
[Maximum mark: 2]
21M.2.sl.TZ1.b(ii)
Magnetite, Fe3O4, is another ore of iron that contains both Fe2+ and Fe3+.
Iron exists as several isotopes.
State the number of protons, neutrons and electrons in each species.
[2]
Markscheme
Award [1 max] for 4 correct values.