Edexcel A-Level Physics Nuclear Equations

Practise Edexcel A-Level Physics nuclear equations by completing decay and reaction equations from nucleon number, proton number and particle symbols.

Exam points

complete nuclear equations by conserving nucleon number and proton number on both sides
identify emitted particles such as neutrons, beta particles, positrons and neutrinos
deduce daughter nuclei after alpha, beta or positron decay using Z and A changes

[Maximum number: 2]

Actinium-225 is a radioactive isotope. It decays to francium by emitting alpha particles. Actinium-225 has a short half-life, which makes it suitable for medical applications.

Complete the nuclear equation for this decay.
${}^{225}_{89}\mathrm{Ac}\rightarrow{}^{221}_{87}\mathrm{Fr}+{}^{4}_{2}\alpha$

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5.4.139 - Nuclear equations question 1