Radioactive Decay: A Sweet Simulation of a Half-life
B. Physical Science
For Grades: 9-12
Structure of Atoms
Radioactive isotopes are unstable and undergo spontaneous nuclear reactions, emitting particles and/or wavelike radiation. The decay of any one nucleus cannot be predicted, but a large group of identical nuclei decay at a predictable rate. This predictability can be used to estimate the age of materials that contain radioactive isotopes.