DP Chemistry (last assessment 2024)
Question 22M.2.sl.TZ1.1e(i)
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.sl.TZ1.1e(i) |
| Level | sl | Paper | 2 | Time zone | TZ1 |
| Command term | State | Question number | e(i) | Adapted from | N/A |
e(i).
[Maximum mark: 1]
22M.2.sl.TZ1.1e(i)
When heated in air, magnesium ribbon reacts with oxygen to form magnesium oxide.
Most nitride ions are 14N3–.
(e(i))
State the number of subatomic particles in this ion.
[1]
Markscheme
Protons: 7 AND Neutrons: 7 AND Electrons: 10 ✔
Examiners report
Most candidates could answer the question about subatomic particles correctly.
