IB Physics HL E 3 7 Decay Nuclear Changes Questions

Track HL nuclear changes through alpha, beta and gamma emissions, identifying changes in nucleon number, proton number and nuclear energy.

Exam points

Analyse alpha, beta-minus and gamma decay pathways and nuclear energy levels.
Predict decay modes from neutron–proton imbalance and complete decay routes.
Explain beta decay at hadron and quark level and gamma emission.

[Maximum number: 1]

Rhodium-106 $\left({ }_{45}^{106} \mathrm{Rh}\right)$ decays into palladium-106 $\left({ }_{46}^{106} \mathrm{Pd}\right)$ by beta minus $\left(\beta^{-}\right)$ decay. The diagram shows some of the nuclear energy levels of rhodium-106 and palladium-106. The arrow represents the $\beta^{-}$ decay.

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Suggest why the $\beta^{-}$ decay is followed by the emission of a gamma ray photon.

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IB Physics HL E 3 7 Decay Nuclear Changes Questions question 1