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what is the equation for half life. Half-life is the time required for the amount of something to fall to half its initial value. The Formula for Half-Life.
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Calculating Decay Rate From Half-Life. The radioactive decay rate can be calculated from the half-life. How to solve for the half-life of any substance.
Tfrac12 0693 l tfrac12 06930002 3465.
Because it takes the isotope 267 hours to reach 25 and there are only 2 halves from 100 to 25 divide 2672 and youll get 1335 hours as the half life. If an initial population of size P has a half-life of d years or any other unit of time then the formula to find the final number A in t years is given by A P 12td. Half-life symbol t 12 is the time required for a quantity to reduce to half of its initial valueThe term is commonly used in nuclear physics to describe how quickly unstable atoms undergo radioactive decay or how long stable atoms survive. T 1 2 l n 2 l 0.
