O-LevelChemistryAtomic Structure5070/11 · May/June 2022 · Q61 Mark

Two particles have the symbols ⁵⁴₂₆Fe²⁺ and ⁵⁹₂₇Co³⁺. Which statement about these particles is correct?

AThey contain the same number of electrons.

BThey contain the same number of neutrons.

CThey contain the same number of protons.

DThey do not contain the same number of protons, neutrons or electrons.

✓ Correct answer

A: They contain the same number of electrons.

Oracle Prep sorts past-paper questions by topic, so you can drill Atomic Structure and see which topics are most likely to come up next.

Topic: Atomic Structure, O-Level Chemistry (syllabus 5070). Multiple choice, 1 mark.
Source: O-Level Chemistry, May/June 2022 Paper 1 Variant 1, question 6.

Questions and mark schemes are from past examination papers and remain the copyright of the exam board. How Oracle Prep builds its content