A-LevelChemistryAtomic structure9701/12 · Oct/Nov 2025 · Q11 Mark

What is the electrons in boxes notation for the Fe3+ ion?

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A[Ar] 11 11

B[Ar] 111 1

C[Ar] 11|1|1

D[Ar] 11111

✓ Correct answer

D: [Ar] 11111

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Topic: Atomic structure, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Oct/Nov 2025 Paper 1 Variant 2, question 1.

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