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5.1 The nuclear model of the atom

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Question 144

A student is asked to classify the following nuclear equations into two categories: nuclear fission and nuclear fusion.

  1. 12H+13H→24He+01n{}^{2}_{1}\text{H} + {}^{3}_{1}\text{H} \rightarrow {}^{4}_{2}\text{He} + {}^{1}_{0}\text{n}12​H+13​H→24​He+01​n
  2. 92235U+01n→56141Ba+3692Kr+301n{}^{235}_{92}\text{U} + {}^{1}_{0}\text{n} \rightarrow {}^{141}_{56}\text{Ba} + {}^{92}_{36}\text{Kr} + 3{}^{1}_{0}\text{n}92235​U+01​n→56141​Ba+3692​Kr+301​n
  3. 612C+24He→816O{}^{12}_{6}\text{C} + {}^{4}_{2}\text{He} \rightarrow {}^{16}_{8}\text{O}612​C+24​He→816​O
  4. 94239Pu→46112Pd+48124Cd+301n{}^{239}_{94}\text{Pu} \rightarrow {}^{112}_{46}\text{Pd} + {}^{124}_{48}\text{Cd} + 3{}^{1}_{0}\text{n}94239​Pu→46112​Pd+48124​Cd+301​n

Which equations show nuclear fusion?

A

1 and 2

B

1 and 3

C

2 and 4

D

3 and 4

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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