E.3.8—Decay equations Topic Practice
E.3.8—Decay equations Topic Practice

IB Physics syllabusPhysics SL/HLFirst assessment 2025
Practise decay equations by balancing proton and nucleon numbers, adding the correct beta particle, and following successive decay steps.
How this is tested
- complete a decay equation by conserving proton number and nucleon number on both sides
- add the correct emitted beta particle and the matching neutrino or antineutrino in the equation
- follow successive alpha and beta steps to decide the final proton and neutron numbers
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