Radioactive Decay and Half-Life Calculations

What this note covers

1. Nuclear Stability and Why Decay Occurs
2. The Four Decay Modes in Detail
3. Penetrating Power and Ionising Ability — Comparison Table
4. The Half-Life Formula — Derivation and Application
5. Worked Examples with Full Arithmetic Verification
6. Writing Balanced Decay Equations — Systematic Method
7. Applications and HSC Exam Context

7 sections · 14 key terms & formulas · 6 common mistakes