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Radioactive emissions

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Question 19

Fluorine-18 (918F{}^{18}_{9}\text{F}918​F) is a radioisotope commonly used as a radiotracer in Positron Emission Tomography (PET) scans. Which of the following equations correctly represents the radioactive decay of a Fluorine-18 nucleus?

A
918F→818O++10e+νe {}^{18}_{9}\text{F} \rightarrow {}^{18}_{8}\text{O} + {}^{0}_{+1}\text{e} + \nu_{\text{e}} 918​F→818​O++10​e+νe​
B
918F→1018Ne+−10e+νe {}^{18}_{9}\text{F} \rightarrow {}^{18}_{10}\text{Ne} + {}^{0}_{-1}\text{e} + \nu_{\text{e}} 918​F→1018​Ne+−10​e+νe​
C
918F→714N+24He+νe {}^{18}_{9}\text{F} \rightarrow {}^{14}_{7}\text{N} + {}^{4}_{2}\text{He} + \nu_{\text{e}} 918​F→714​N+24​He+νe​
D
918F→818O++10e+ν‾e {}^{18}_{9}\text{F} \rightarrow {}^{18}_{8}\text{O} + {}^{0}_{+1}\text{e} + \overline{\nu}_{\text{e}} 918​F→818​O++10​e+νe​
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Radioactive emissions Questions

  1. GCSE
  2. /Physics
  3. /Radioactive emissions

41 exam-style questions on OCR GCSE Physics Radioactive emissions. Each one has a worked solution and a mark scheme showing where the marks go.

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