IB Physics HL E.3.8 Decay equations Question Bank

Practise IB Physics SL/HL E.3.8 by applying decay equations concepts to exam-style physics questions.

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A short-range attractive force operates between nucleons.

Radioactive potassium-40 $\left({ }_{19}^{40} \mathrm{~K}\right)$ undergoes $\beta^{-}$ decay to form a nuclide of calcium (Ca).

Write down the complete equation for this radioactive decay.

{ }_{19}^{40} \mathrm{~K} \rightarrow

$\begin{aligned} { }_{19}^{40} \mathrm{~K} \rightarrow{ }_{20}^{40} \mathrm{Ca} +{ }_{-1}^{0} \beta+\bar{\nu} \end{aligned}$

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