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A-LevelPhysicsNuclear physicsOct/Nov 2019Paper 1 Q381 Mark

The table gives some data relating to four neutral (uncharged) atoms W, X, Y and Z. [Table showing nucleon (mass) number and total number of particles (protons, neutrons and electrons) for atoms W, X, Y, Z.] Two of the atoms are isotopes of the same element. What is the proton number of this element?

A7
B8
C9
D10

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The correct answer is B. This question tests the candidate's understanding of nuclear physics within the Physicssyllabus. The examiner's mark scheme requires...

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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...

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About This A-Level Physics Question

This multiple-choice question appeared in the Cambridge A-Level Physics (9702) Oct/Nov 2019 examination, Paper 1 Variant 2. It tests the topic of Nuclear physics and is worth 1 mark.

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