How to use: Each dot is one atom. Press the button to let one half-life pass. Half of the atoms left decay. Watch the graph curve down.
Half-lives passed: 0 Time passed: 0
Atoms left (not decayed): 800 of 800 Percent left: 100%
Half-lives
Atoms left
Percent
Press the button. About half of the atoms left will decay.
Illustrative data (800 model atoms; the half-lives are real values from reference tables). This simulation is a simple model for learning, not a real lab measurement.