Long answer·Hard exam skill (4/5)·Calculator allowed
Difficulty guide
The label describes the problem, not your ability.
1/5 - Foundational
Warm-up setup; checks one basic idea.
2/5 - Routine exam skill
Normal syllabus skill; usually one main rule or interpretation.
3/5 - Standard multi-step
Exam-style problem with multiple steps or a common trap.
4/5 - Hard exam skill
High-end exam problem; combines methods carefully.
5/5 - Challenge
Stretch problem beyond normal exam pressure.
Question
A nucleus of mass number has actual mass . The total mass of its separated nucleons is . Use .
Total: 5 marks
(a) Find the mass defect. (1 mark)
(b) Find the binding energy in MeV. (2 marks)
(c) Find the binding energy per nucleon and state what it indicates. (2 marks)
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