A-LevelPhysicsNuclear physics9702/12 · May/June 2015 · Q381 Mark
An experiment in which α-particles were deflected by a gold foil produced new insights into the structure of the atom. Which conclusion can be drawn from the results of the experiment?
AAtomic nuclei occupy a very small fraction of the volume of an atom.
BElectrons orbit the atomic nucleus.
CSome atoms of the same element contain different numbers of neutrons.
DThe atomic nucleus contains protons and neutrons.
✓ Correct answer
A: Atomic nuclei occupy a very small fraction of the volume of an atom.
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