O-LevelPhysicsNuclear Physics5054/11 · May/June 2010 · Q401 Mark

Proton number is another name for atomic number. Nucleon number is another name for mass number. What are isotopes?

Anuclei with different proton numbers and different nucleon numbers

Bnuclei with different proton numbers and the same nucleon number

Cnuclei with the same proton number and different nucleon numbers

Dnuclei with the same proton number and the same nucleon number

✓ Correct answer

C: nuclei with the same proton number and different nucleon numbers

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.

Topic: Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2010 Paper 1 Variant 1, 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