A-LevelChemistryAtomic structure9701/12 · Feb/Mar 2020 · Q11 Mark

What number of protons, neutrons and electrons are present in the ion 54Fe3+?

Aprotons 26, neutrons 28, electrons 23

Bprotons 26, neutrons 28, electrons 29

Cprotons 29, neutrons 25, electrons 23

Dprotons 29, neutrons 25, electrons 26

✓ Correct answer

A: protons 26, neutrons 28, electrons 23

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Topic: Atomic structure, A-Level Chemistry (syllabus 9701). Multiple choice, 1 mark.
Source: A-Level Chemistry, Feb/Mar 2020 Paper 1 Variant 2, question 1.

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