What is the half-life formula?

N(t) = N0 * (1/2)^(t / t_half), where N0 is initial quantity, t is elapsed time, and t_half is half-life period.

Half-Life Calculator — Radioactive Decay & Remaining Amount

☢️ Decay Formula

N(t) = N₀ × (1/2)^(t / t_half)

Half-life is the time required for a quantity to reduce to half of its initial value through exponential decay.