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6 questions
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  • Q1
    Match each keyword or phrase to the correct definition.
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    30s
  • Q2
    Which of these symbols can be used to represent an alpha particle?
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    30s
  • Q3
    Which of these shows the daughter nucleus formed by the alpha decay of thorium-232 (^{232}_{90}Th)?
    ^{232}_{90}Ra
    ^{228}_{88}Th
    ^{230}_{86}Th
    ^{230}_{86}Rn
    ^{228}_{88}Ra
    30s
  • Q4
    Which of the following statements about decay by neutron emission are correct?
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    30s
  • Q5
    Which of these types of decay is most likely for a light nucleus which has too many neutrons compared to protons?
    neutron emission
    delta decay
    beta-minus decay
    alpha decay
    gamma decay
    30s
  • Q6
    Which of the following equations correctly shows a beta minus β^{-} decay for radium-228 ^{228}_{88}Ra?
    ^{228}_{88}Ra -> ^{228}_{87}Fr + ^{0}_{1}β
    ^{228}_{88}Ra -> ^{228}_{87}Fr + ^{0}_{-1}β
    ^{228}_{88}Ra -> ^{224}_{86}Rn + ^{4}_{2}α
    ^{228}_{88}Ra -> ^{228}_{89}Ac + ^{0}_{-1}β
    ^{228}_{88}Ra -> ^{229}_{88}Ra + ^{-1}_{0}β
    30s

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