Radioactive Decay Calculator
Calculate remaining amount, decayed amount, and decay constant using the radioactive decay formula.
How to Use the Radioactive Decay Calculator
- Enter the initial amount.
- Enter the half-life value.
- Enter elapsed time, select time unit, and click Calculate.
Casos de Uso
- •Nuclear physics education.
- •Radiometric dating calculations.
- •Medical isotope dosage planning.
Fórmula
Formula: N(t) = N₀ × e^(−λt). Decay constant λ = ln(2) / t½.
Preguntas Frecuentes
What is radioactive decay?
Radioactive decay is the spontaneous transformation of an unstable atomic nucleus, emitting radiation and converting to a more stable form.
What is half-life?
Half-life is the time required for half of a radioactive sample to decay. It ranges from fractions of a second (polonium-214) to billions of years (uranium-238).
What units can I use?
The calculator supports seconds, minutes, hours, days, and years. Make sure both the half-life and elapsed time use the same unit.