Learning objective
Explain why it is impossible to predict when an individual unstable nucleus will decay.
Read the explanation, check the common trap, then practise with flashcards and questions.
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Topic
Atoms and nuclear radiation
Subtopic
Half-lives and the random nature of radioactive decay
Study support
Understand this objective
Quick explanation
Explain why it is impossible to predict when an individual unstable nucleus will decay
- This point belongs to Atoms and nuclear radiation, especially Half-lives and the random nature of radioactive decay.
- You need to be able to explain why it is impossible to predict when an individual unstable nucleus will decay.
- The key ideas to know are impossible, unstable, and predict.
- Use the linked flashcards and practice questions to check recall, then practise applying the idea in an exam-style answer.
Key concepts
Why it matters
This objective helps connect Half-lives and the random nature of radioactive decay to exam-style questions, flashcards, and revision notes for Atoms and nuclear radiation.
Quick student answer
How do you explain it is impossible to predict when an individual unstable nucleus will decay?
Direct answer
In Physics, this page helps you answer questions about it is impossible to predict when an individual unstable nucleus will decay within Atoms and nuclear radiation. Focus on the key process, correct scientific terms, and how the idea links to exam-style questions. Key terms to check are radioactive decay and half-life.
Key terms
- radioactive decay: The process in which an unstable nucleus emits radiation.
- half-life: The time taken for the number of radioactive nuclei in a sample to halve.
Common trap
Misunderstanding Predictability in Radioactive Decay: Emphasize that radioactive decay is a random process, and while the half-life can be determined for a large sample, the exact moment an individual nucleus will decay cannot be predicted.
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Revision notestopic notes
Open the full topic revision notes when you are ready to review this objective in context.
Open revision notesRelated learning objectives
- Define radioactive decay as the process in which an unstable nucleus emits radiation.
Radioactive decay and nuclear radiation
- State that radioactive decay is a random process.
Radioactive decay and nuclear radiation
- Explain that radioactive decay changes the nucleus of an atom.
Radioactive decay and nuclear radiation
- Describe alpha radiation as a helium nucleus containing two protons and two neutrons.
Radioactive decay and nuclear radiation
- Describe beta radiation as a high-speed electron emitted from the nucleus.
Radioactive decay and nuclear radiation