Half-Life & Radioactive Decay Calculator
Calculate radioactive decay and remaining quantities with interactive SVG curve graphing
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Calculate radioactive half-life decay. Inputs initial mass, half-life duration, and elapsed time to output remaining quantity, percent decayed, and elapsed half-life cycles. Features an interactive SVG decay curve.
How to use
- Input the initial amount (N₀) and the half-life (t₁/₂) of the substance.
- Enter the elapsed time (t) and choose the appropriate time unit.
- Review calculated values and find the red pointer showing your current status on the green decay curve.
FAQ
- What is the mathematical formula for half-life decay?
- It follows the exponential decay model: N(t) = N₀ * (0.5)^(t / t₁/₂), where t / t₁/₂ is the number of half-lives passed.
- What is the half-life of Carbon-14?
- Carbon-14 has a half-life of approximately 5,730 years. It is widely used in radiocarbon dating to determine the age of ancient organic materials.