Nuclear reactions as a source of energy
1 mark · EasyWhich statement best describes what happens to the mass during a nuclear fission reaction?
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Correct option: The mass of the products is less than the mass of the original nucleus.
Common mistakes: Choosing 'equal' instead of 'less'.
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Marking points
B1 · 1 mark · Correct option selected: mass of products is less than mass of the original nucleus.
Worked solution
Correct answer: The mass of the products is less than the mass of the original nucleus.