Plot the decay curve: Isotope X, half-life 10 years

An example figure from the Half-Life Graph generator.

Dots at 100, 50, 25, 12.5, 6.25 and 3.125 percent every 10 years on an empty grid, for students to join into a decay curve — The points of a made-up Isotope X with a half-life of 10 years, its percent remaining at the start and after each half-life, 100%, 50%, 25%, 12.5% and so on, with the curve left off. Students join the dots with a smooth curve and see that it never reaches zero.

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Answer key

Isotope X: half-life 10 years, λ = 0.0693 per year; beta decay to Isotope Y

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