Questions: Atomic structure and radioactivity
Pick a question type. Each time you get new numbers. Free ones are marked free.
Atoms, nuclei and isotopes
- Protons, neutrons and electrons from a nuclideCalculate, 3 marks, free
- Electrons in an ionCalculate, 2 marks, free
- Spotting isotopesChoose, 2 marks, free
- Atom and nucleus sizes in standard formCalculate, 3 marks, free
- How much bigger is an atom than its nucleus?Calculate, 4 marks, free
- How the model of the atom developedChoose, 1 mark, free
- Alpha scattering: what each result showsChoose, 1 mark, free
- Electrons and energy levelsChoose, 1 mark, Plus
- Alpha scattering and the end of the plum pudding (6 marks)Explain, 6 marks, Plus
Alpha, beta and gamma radiation
- Alpha, beta, gamma and neutronsChoose, 1 mark, free
- Which radiation? Absorber readingsDetermine, 3 marks, free
- Count rate from a number of countsCalculate, 4 marks, free
- Why ionising power and range go togetherExplain, 3 marks, free
- Unstable nuclei, activity and count rateChoose, 1 mark, free
Nuclear equations
- The nucleus made by alpha decayChoose, 1 mark, Plus
- The nucleus made by beta decayChoose, 1 mark, Plus
- Mass and atomic numbers after a decayCalculate, 3 marks, Plus
- Missing number in a nuclear equationCalculate, 2 marks, Plus
- Which decay happened?Choose, 1 mark, Plus
- A chain of decaysCalculate, 3 marks, Plus, Higher tier
- How each decay changes the numbersComplete, 3 marks, Plus
- What happens in the nucleus in beta decayExplain, 3 marks, Plus
Half-life
- Half-life from a decay graphDetermine, 4 marks, Plus
- Activity after a number of half-livesCalculate, 3 marks, Plus
- Fraction of a sample leftCalculate, 2 marks, Plus
- How long until the activity falls?Calculate, 3 marks, Plus
- Half-life from two readingsCalculate, 3 marks, Plus
- Half-life with a background countCalculate, 4 marks, Plus
- Mass of an isotope leftCalculate, 3 marks, Plus
- Net decline as a ratioCalculate, 3 marks, Plus, Higher tier
- Random decay and half-lifeChoose, 1 mark, Plus
- Plot a decay curve and read the half-lifePlot, 5 marks, Plus
Hazards and uses of radiation
- Contamination or irradiation?Choose, 1 mark, Plus
- Why an alpha source is safest outside the bodyExplain, 4 marks, Plus
- Comparing radiation dosesCalculate, 4 marks, Plus, Physics only
- Doses in sieverts and millisievertsCalculate, 5 marks, Plus, Physics only
- Sources of background radiationChoose, 1 mark, Plus, Physics only
- Choosing an isotope for a jobChoose, 3 marks, Plus, Physics only
- Nuclear radiation in medicineChoose, 1 mark, Plus, Physics only
- Choosing a medical tracer (6 marks)Evaluate, 6 marks, Plus, Physics only
- A thickness gaugeChoose, 2 marks, Plus, Physics only
Nuclear fission and fusion
- Nuclear fissionChoose, 1 mark, Plus, Physics only
- Counting a chain reactionCalculate, 5 marks, Plus, Physics only
- Inside a nuclear reactorChoose, 1 mark, Plus, Physics only
- Nuclear fusionChoose, 1 mark, Plus, Physics only
- Balancing a fission equationCalculate, 2 marks, Plus, Physics only
- Fission, fusion or both?Compare, 1 mark, Plus, Physics only
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