The phenomenon of radiation

• Resources Structure
• A level
• Physics
• XXI. Nuclear physics
• 106. Nuclear radiation

• Exam Specifications
• A Level
• AQA GCE AS/A Physics A (5451/6451)
• A2 Module 4 Waves, Fields and Nuclear Energy
• 5. Nuclear applications
• Safety aspects
• A2 Modules 5-9 (All Options) Common Component Nuclear Instability
• 1. Nuclear Instability
• Radioactivity
• Exponential law of decay
• Variation of N with Z for stable and unstable nuclei
• Possible modes of decay of unstable nuclei
• Existence of nuclear excited states
• Probing matter
• Nuclear radius
• AQA GCE AS/A Physics B (5456/6456)
• V. A2 Module 5 Fields and their Applications
• 3. Nuclear Energy
• E = mc2 applied to nuclear processes
• Calculation of the binding energy of a nucleus
• Description of the processes of fission and fusion
• II. AS Module 2 Waves and Nuclear Physics
• 4. Radioactivity
• Relative penetrating powers of alpha, beta and gamma radiations
• The random nature of the decay. Exponential decay as a process with constant half-life
• Understanding of nuclear nomenclature, Z and A and terms nuclide and isotope
• Background radiation
• Spontaneous nuclear changes: the nature of alpha, beta and gamma emissions
• Ionising nature of charged particles and gamma rays

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