Key term for OCR GCSE Physics B, used in Radioactivity.
The proportion of radioactive nuclei that have not yet decayed after a given period of time.
Fraction remaining appears in OCR GCSE Physics B revision content for Radioactive materials, especially Radioactivity and Radioactivity.
Create a free account to access OCR GCSE Physics B revision notes, track progress, and practise related key terms.
