Edexcel GCSE Physics 1PH0 · 6.2

Size of atoms and small molecules

Code: 6.2
In: 6 Radioactivity
Course: GCSE Physics 1PH0
Board: Edexcel

Codes and titles are read by a script from Edexcel's published specification and have not been checked by a person. What each point covers is in the specification itself: Edexcel’s specification.

Points in 6 Radioactivity

6.1 Structure of the atom
6.2 Size of atoms and small molecules
6.3 Nuclei of isotopes
6.4 Nuclear charge and isotopes
6.5 Relative masses and charges of particles
6.6 Neutral atoms
6.7 Electron orbits
6.8 Electrons changing orbit
6.9 Positive ions from losing electrons
6.10 Radiation from unstable nuclei
6.11 Ionising radiations
6.12 Background radiation
6.13 Sources of background radiation
6.14 Detecting radioactivity
6.15 Nature of alpha, beta and gamma radiation
6.16 Penetration and ionisation of alpha, beta and gamma
6.17 Development of the atomic model
6.18 Beta minus decay
6.19 Beta plus decay
6.20 Effects of decay on atomic and mass numbers
6.21 Gamma emission after decay
6.22 Balancing nuclear equations
6.23 Decrease in activity over time
6.24 The becquerel
6.25 Half-life
6.26 Random decay and predictable half-life
6.27 Half-life calculations
6.28P Uses of radioactivity
6.29 Dangers of ionising radiation
6.30P Half-life and radiation dangers
6.31 Radiation safety precautions
6.32 Contamination and irradiation
6.33P Internal and external radiotherapy
6.34P Radioactive substances in medical diagnosis
6.35P Producing PET isotopes nearby
6.36P Nuclear power: advantages and disadvantages
6.37P Nuclear reactions as energy sources
6.38P Fission of uranium-235
6.39P Controlled chain reactions
6.40P Moderators and control rods
6.41P Generating electricity in a nuclear power station
6.42P Radioactive fission products
6.43P Nuclear fusion
6.44P Fusion and fission compared
6.45P Why fusion needs high temperatures and pressures
6.46P Difficulty of practical fusion power