Skip to main content
O-LevelPhysicsNuclear Physics5054/12 · Oct/Nov 2021 · Q401 Mark

How do the proton numbers (atomic numbers) and the nucleon numbers (mass numbers) of two different isotopes of the same element compare with each other?

Aproton number: different, nucleon number: different
Bproton number: different, nucleon number: same
Cproton number: same, nucleon number: different
Dproton number: same, nucleon number: same

✓ Correct answer

C: proton number: same, nucleon number: different

Practise more questions on this topic

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

Sign up free →

About this question

Topic
Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source
O-Level Physics, Oct/Nov 2021 Paper 1 Variant 2, question 40.

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

Related Physics questions

© 2026 Oracle Prep