Radioactive Decay Law Calculator

Initial Activity:
Isotope Half Life:
Decay Time:
Final Activity:

Radioactive decay, also known as radioactivity or nuclear decay, It means a nucleus of an unstable atom loses energy. The calculator to find the Initial Activity, Isotope Half Life, Decay Time, Final Activity, Fill in any three items to get the result of last.

Radioactive Decay Law formula

N = N0e-(0.693t/T1/2)

Where T1/2: half time of the radioactive material, t is decay time, N is Activity at time 0, N0: Initial activity.

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