This diagram covers Half-Life Decay Curve within Half-Life for GCSE Physics. Revise Half-Life in Atomic Structure for GCSE Physics with 13 exam-style questions and 23 flashcards. This topic appears regularly enough that it should still be part of a steady revision cycle. It is section 3 of 13 in this topic. Focus on the labels, the relationships between parts, and the explanation that turns the diagram into an exam-ready answer.
Topic position
Section 3 of 13
Practice
13 questions
Recall
23 flashcards
📊 Half-Life Decay Curve
Figure 1: Exponential decay curve. At each half-life interval, the activity (or number of undecayed nuclei) halves. The curve never reaches zero.
KEY PATTERN: After each half-life, exactly HALF of the radioactive atoms remain. The curve never reaches zero — there's always some radioactive material left. To find half-life from a graph: find when the activity halves (e.g., 800 → 400 Bq) and read the time taken.