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6.3 Nuclear equations and decay

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Question 22

The nucleus of the isotope potassium-40 can occasionally capture an inner-orbit electron.

When this occurs, a proton in the nucleus is converted into a neutron, as represented by the equation:

{}^1_1\text{p} + {}^{0}_{-1}\text{e} \longrightarrow {}^1_0\text{n}

Describe how capturing an electron affects both the proton number and the mass (nucleon) number of the 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 22

The nucleus of the isotope potassium-40 can occasionally capture an inner-orbit electron.

When this occurs, a proton in the nucleus is converted into a neutron, as represented by the equation:

{}^1_1\text{p} + {}^{0}_{-1}\text{e} \longrightarrow {}^1_0\text{n}

Describe how capturing an electron affects both the proton number and the mass (nucleon) number of the 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.