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Radioactivity (A-level only)

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Question 20

Which statement about this reaction is not true?

A

54140Xe^{140}_{54}\text{Xe}54140​Xe has the greatest binding energy per nucleon of the three nuclides.

B

The mass of 92235U^{235}_{92}\text{U}92235​U is greater than the sum of the masses of 54140Xe^{140}_{54}\text{Xe}54140​Xe and 3894Sr^{94}_{38}\text{Sr}3894​Sr.

C

The binding energy of the free neutrons in the reaction is zero.

D

The total binding energy of 92235U^{235}_{92}\text{U}92235​U is greater than the total binding energy of 54140Xe^{140}_{54}\text{Xe}54140​Xe.

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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