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Edexcel GCSE Physics Topic 6 - Radioactivity




Below is everything the examiners think you know, if you're not sure of something click on the link to watch my YouTube video explanation. For a copy of these you can print off, get the FREE revision guide I wrote for you.


 • I can recall the size of an atom

 • I can recall the structure of an atom

 • I can recall the parts of an atom

 • I can recall the mass, charge and location of the subatomic particles

 • I can define the terms atomic number and mass number

 • I can work out the number of protons, electrons and neutrons an atom has

 • I can define the term isotope

 • I can work out the number of protons, electrons and neutrons and isotope has

 • I can explain why atoms have no overall charge

 • I can explain why ions have a charge

 • I can recall the electrons are arranged in energy levels (shells)

 • I can explain that the position of electrons may change with the absorption or emission of electromagnetic radiation

 • I can describe the different types of radiation

 • I can recall the different sources of background radiation

 • I can recall that activity is measured in Becquerel’s (Bq)

 • I can describe what a Geiger-Muller tubes does

 • I can describe how and why a scientific model changes over time

 • I can describe the plum pudding model of the atom

 • I can explain why Rutherford’s experiment that disproved the plum pudding model

 • I can describe how Bohr adapted the model of the atom

 • I can describe - decay

 • I can describe + decay

 • I can describe the process of radioactive decay

 • I can represent radioactive decay by nuclear equations

 • I can define the term half-life

 • I can relate half-life to radioactive decay

 • I can determine half-life from graphic or mathematical information

 • I can describe the different uses of radioactivity - Physics only

 • I can describe what radioactive contamination is

 • I can describe the precautions that need to be taken around radioactive contamination

 • I can describe what may affect a persons dose of radiation - Physics only

 • I can recall the difference between irradiation and contamination - Physics only

 • I can describe hoe tumours can be treated - Physics only

 • I can describe the use of radioactivity in medicine - Physics only

 • I can evaluate the use of nuclear power - Physics only

 • I can describe nuclear fission - Physics only

 • I can describe the chain reaction that can occur from nuclear fission - Physics only

 • I can describe nuclear fusion - Physics only