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6.3 Nuclear equations and decay

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Question 45

Fluorine-18 ( $918F{}^{18}_{9}\text{F}$ ) is a positron-emitting radioisotope widely used as a radiacer in Positron Emission Tomography (PET) scans. During this decay, a proton within the fluorine nucleus converts into a neutron, emitting a positron and an electron neutrino, as shown by the following nuclear equation:

{}^{1}_{1}\text{p} \longrightarrow {}^{1}_{0}\text{n} + {}^{0}_{+1}\text{e} + \nu_{\text{e}}

Describe how this positron emission process affects both the proton (atomic) number and the mass (nucleon) number of the parent nucleus.

[2]

Markscheme

6.3 Nuclear equations and decay Questions

GCSE
Physics
6.3 Nuclear equations and decay

90 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay. Each one has a worked solution and a mark scheme showing where the marks go.

6.3 Nuclear equations and decay

Question bank

6.3 Nuclear equations and decay

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Question 45

{}^{1}_{1}\text{p} \longrightarrow {}^{1}_{0}\text{n} + {}^{0}_{+1}\text{e} + \nu_{\text{e}}

Describe how this positron emission process affects both the proton (atomic) number and the mass (nucleon) number of the parent nucleus.

[2]

Markscheme

6.3 Nuclear equations and decay Questions

GCSE
Physics
6.3 Nuclear equations and decay

90 exam-style questions on Edexcel GCSE Physics 6.3 Nuclear equations and decay. Each one has a worked solution and a mark scheme showing where the marks go.