![]() ![]() For example, the half-life of carbon-14 is 5,730 years. The half-life is the time it takes for half of a given amount of an isotope to decay. What is the half-life of the 10 atoms of carbon-14? The mean life also turns out to exactly equal the number τ that appears in the exponential term e−t/τ involved with describing decay or growth, called the time constant. It turns out that the mean life equals the half life divided by the natural logarithm of 2 (about 0.693). ![]() Half-life, in radioactivity, the interval of time required for one-half of the atomic nuclei of a radioactive sample to decay (change spontaneously into other nuclear species by emitting particles and energy), or, equivalently, the time interval required for the number of disintegrations per second of a radioactive … How do I find the mean of a half-life? The graph of an element undergoing radioactive decay can be classified as an exponential graph, specifically exponential decay. ![]() What is the shape of the graph of radioactive decay? The half life of Uranium 235 is 704 million years. What is the half-life of U 235 according to the graph? ![]()
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