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Radioactivity (A-level only)

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Question 30

The table shows the masses of three particles.

ParticleMass / u\text{u}u
proton1.00728
neutron1.00867
nucleus of beryllium 49Be^9_4\text{Be}49​Be9.00999

What is the mass difference of a 49Be^9_4\text{Be}49​Be nucleus?

A

0.06804 u0.06804\text{ u}0.06804 u

B

0.06248 u0.06248\text{ u}0.06248 u

C

0.06109 u0.06109\text{ u}0.06109 u

D

0.05553 u0.05553\text{ u}0.05553 u

Markscheme

Radioactivity (A-level only) Questions

  1. A Level
  2. /Physics
  3. /Radioactivity (A-level only)

128 exam-style questions on AQA A Level Physics Radioactivity (A-level only), covering Rutherford scattering (A-level only), $\alpha$ , $\beta$ and $\gamma$ radiation (A-level only), Radioactive decay (A-level only), Nuclear instability (A-level only), Nuclear radius (A-level only), Mass and energy (A-level only), Induced fission (A-level only), and Safety aspects (A-level only). Each one has a worked solution and a mark scheme showing where the marks go.

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