O-LevelPhysicsNuclear Physics5054/12 · Oct/Nov 2021 · Q391 Mark

In the simple model of an atom, X orbits around Y. What are X and Y?

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AX: electron, Y: nucleus

BX: neutron, Y: electron

CX: nucleus, Y: proton

DX: proton, Y: neutron

✓ Correct answer

A: X: electron, Y: nucleus

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Topic: Nuclear Physics, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, Oct/Nov 2021 Paper 1 Variant 2, question 39.

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