Topic 22Physics
5.2 Radioactivity
Radioactivity: detection, the three types of nuclear emission, radioactive decay, half-life and safety precautions.
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Detection of radioactivitySign up
Background radiation + sources · Count rate + (HL) corrected count rate
30 min
The three types of nuclear emissionSign up
Nature, ionising effect + penetration of α/β/γ · (HL) Deflection in fields + ionising-effect explanation
35 min
Radioactive decaySign up
Spontaneous + random decay, change of element · (HL) Decay equations + neutron→proton in β-decay
30 min
Half-life and safety precautionsSign up
Half-life definition + simple calculations · (HL) Half-life from data, applications + safety precautions
35 min