Atomic Structure Exam Questions
Questions on the structure of atoms, development of the atomic model, radioactive decay, alpha, beta and gamma radiation, half-life, radioactive contamination and irradiation, and nuclear fission and fusion. Download free past paper questions organised by topic with mark schemes.
Download Exam Questions
Frequently Asked Questions
What are alpha, beta, and gamma radiation?
Alpha (α): 2 protons + 2 neutrons, +2 charge, stopped by paper. Beta (β): electron from nucleus, -1 charge, stopped by aluminium. Gamma (γ): electromagnetic wave, no charge, reduced by lead/concrete.
How do you calculate half-life GCSE?
Half-life is the time for half the radioactive nuclei to decay (or activity to halve). After 1 half-life = 50%, 2 half-lives = 25%, 3 half-lives = 12.5%, etc.
What is the difference between contamination and irradiation?
Contamination: radioactive material gets on/in something (continues to emit radiation). Irradiation: exposure to radiation from outside (no radioactive material deposited, stops when source removed).
Is nuclear fission and fusion Triple Science?
Yes, detailed nuclear fission and fusion content is Triple Science only. Combined Science students need basic understanding of radioactive decay and uses.
📚 How to Use These Exam Questions
- 1Study the topic content first using our revision notes and flashcards
- 2Attempt the questions under timed conditions without looking at the mark scheme
- 3Mark your answers and identify gaps in your knowledge
- 4Review the topics you struggled with and try similar questions
Related Topics
Want More Practice?
Get access to 2,630+ quiz questions, 2,000+ flashcards, and expert video explanations.