Key term for AQA GCSE Physics, used in Nuclear Radiation.
A nucleus that has an imbalance of protons and neutrons, causing it to randomly emit radiation to achieve stability.
Unstable nucleus appears in AQA GCSE Physics revision content for Atomic structure, especially Nuclear Radiation and Radioactive decay and nuclear radiation.
Create a free account to access AQA GCSE Physics revision notes, track progress, and practise related key terms.
