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5.1 The nuclear model of the atom

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Question 41

Plutonium-239 can undergo nuclear fission in several ways.

Which equation correctly shows a possible fission reaction for plutonium-239?

A

01n+94239Pu→54137Xe+40101Zr+201n{}^{1}_{0}\text{n} + {}^{239}_{94}\text{Pu} \rightarrow {}^{137}_{54}\text{Xe} + {}^{101}_{40}\text{Zr} + 2 {}^{1}_{0}\text{n}01​n+94239​Pu→54137​Xe+40101​Zr+201​n

B

01n+94239Pu→56141Ba+3898Sr+201n{}^{1}_{0}\text{n} + {}^{239}_{94}\text{Pu} \rightarrow {}^{141}_{56}\text{Ba} + {}^{98}_{38}\text{Sr} + 2 {}^{1}_{0}\text{n}01​n+94239​Pu→56141​Ba+3898​Sr+201​n

C

01n+94239Pu→56144Ba+3894Sr+301n{}^{1}_{0}\text{n} + {}^{239}_{94}\text{Pu} \rightarrow {}^{144}_{56}\text{Ba} + {}^{94}_{38}\text{Sr} + 3 {}^{1}_{0}\text{n}01​n+94239​Pu→56144​Ba+3894​Sr+301​n

D

01n+94239Pu→3996Y+55142Cs+401n{}^{1}_{0}\text{n} + {}^{239}_{94}\text{Pu} \rightarrow {}^{96}_{39}\text{Y} + {}^{142}_{55}\text{Cs} + 4 {}^{1}_{0}\text{n}01​n+94239​Pu→3996​Y+55142​Cs+401​n

Markscheme

5.1 The nuclear model of the atom Questions

  1. IGCSE
  2. /Physics
  3. /5.1 The nuclear model of the atom

284 exam-style questions on CIE IGCSE Physics 5.1 The nuclear model of the atom, covering 5.1.1a Structure of the atom and ions, 5.1.1b Alpha-particle scattering, 5.1.2a Composition of the nucleus and isotopes, 5.1.2b Proton number, nucleon number and nuclide notation, and 5.1.2c Nuclear fission and nuclear fusion. Each one has a worked solution and a mark scheme showing where the marks go.

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