... of the following three equivalent formulas: ... is the half-life of the decaying quantity, ...
... introduces radioactive decay and decibel levels and explains how to use their formulas. ... "Half-life means that, if you have 100 pounds of Plutonium-239.
Free online tool to calculate any one of the values from the other three in a half- life formula as well as to convert between half life, mean lifetime, and decay ...
A radioactive half-life refers to the amount of time it takes for half of the original isotope to decay. For example, if the half-life of a 50.0 gram sample is 3 years, ...
The radioactive half-life for a given radioisotope is a measure of the tendency of the nucleus to "decay" or ... so the standard form of the decay equation is: ...
You can calculate the half-life of any substance, given the rate of decay, which is the initial quantity of ... Now, we have the formula for the half-life of a substance.
Page 1. HALF-LIFE EQUATIONS. The basic equation ; the starting point ; : x. 2. 1 y = written for time: 1/2 t. 2. 1 y = where y = fraction of original material and. 1/2.