O-LevelPhysicsNuclear PhysicsOct/Nov 2024Paper 1 Q361 Mark

Which statement about the nuclide notation R^X_Z is correct?

Q: What topic does this question test?

This question tests Nuclear Physics in O-Level Physics (syllabus code 5054). It is worth 1 mark.

AR is the nucleon number which is different for different isotopes of X.

BR is the proton number which is the same for different isotopes of X.

CZ is the nucleon number which is the same for different isotopes of X.

DZ is the proton number which is different for different isotopes of X.

✓ Correct Answer

The correct answer is A: R is the nucleon number which is different for different isotopes of X.

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This O-Level Physics Question

Topic

This multiple-choice question tests Nuclear Physics in O-Level Physics (syllabus code 5054). It is worth 1 mark.

Source

This question appeared in the Cambridge O-Level Physics Oct/Nov 2024 examination, Paper 1 Variant 2.

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