About Radioactive Decay & Isotope Half-Life Studio
Calculate exponential radioactive decay over time (N(t) = N₀ × (½)^(t / t½)). Features decay constant (λ), mean lifetime (τ), remaining percentage, half-lives elapsed, and 12 historical isotope presets including Carbon-14, Iodine-131, Cesium-137, and Uranium-238.
Key Capabilities & Features
- Exponential radioactive decay solver: N(t) = N₀ × (0.5)^(t / t½)
- Decay constant (λ = ln(2) / t½) and mean lifetime (τ = 1 / λ)
- Elapsed half-lives counter and percentage remaining breakdown
- 12 Isotope presets: Carbon-14, Iodine-131, Technetium-99m, Cobalt-60, Cesium-137, Uranium-238
- Step-by-step formula breakdown card
How to Use Radioactive Decay & Isotope Half-Life Studio
Choose Isotope Preset or Custom
Select a known radioisotope from the dropdown or enter custom half-life values.
Enter Initial Quantity & Time
Specify starting mass or activity and elapsed time duration.
Inspect Decay Output
Review the remaining amount, half-lives elapsed, and decay constant.
Privacy & In-Browser Execution Guarantee
All decay models evaluate locally in your browser with zero remote transmission.
Frequently Asked Questions
What is Carbon-14 dating?
Carbon-14 has a half-life of 5,730 years and decays into Nitrogen-14. By measuring the ratio of C-14 to C-12 in organic artifacts, scientists can determine ages up to ~50,000 years.