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what is the half life decay formula. Tfrac 1 2 t21. The decay law calculates the number of undecayed nuclei in a given radioactive substance.
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A certain radioactive substance has a half-life of 12 days. T 1 2 l n 2 l 0. How to solve for the half-life of any substance.
So when were dealing with half life specifically instead of exponential decay in general we can use this formula we got from substituting y C 2 yC2 y C 2.
This equation is used in the calculator when solving for half-life time. And half-life tells us that after 5730 years well have 12 of our initial sample left. This equation is used in the calculator when solving for half-life time. The relationship can be derived from decay law by setting N ½ N o.
