DP Chemistry (first assessment 2025)
Question 22M.2.SL.TZ2.a(i)
| Date | May 2022 | Marks available | [Maximum mark: 1] | Reference code | 22M.2.SL.TZ2.a(i) |
| Level | SL | Paper | 2 | Time zone | TZ2 |
| Command term | State | Question number | a(i) | Adapted from | N/A |
a(i).
[Maximum mark: 1]
22M.2.SL.TZ2.a(i)
State the full electronic configuration of Fe2+.
[1]
Markscheme
1s2 2s2 2p6 3s2 3p6 3d6 ✔
Examiners report
Mostly well done which was a pleasant surprise since this is not overly easy, predictably some gave [Ar] 4s2 3d4.
Syllabus sections
Structure 1. Models of the particulate nature of matter » Structure 1.3—Electron configurations » Structure 1.3.5—Each orbital has a defined energy state for a given electron configuration and chemical environment, and can hold two electrons of opposite spin. Sublevels contain a fixed number of orbitals, regions of space where there is a high probability of finding an electron. Apply the Aufbau principle, Hund’s rule and the Pauli exclusion principle to deduce electron configurations for atoms and ions up to Z = 36.