Biology

The rate of radioactive decay is primarily determined by the type of isotope. Each radioactive isotope has a characteristic half-life, which is the time it takes for half of the atoms in a sample to decay. This decay rate is constant for each isotope and is not significantly affected by external conditions like temperature, pressure, or time.

For A:  While extreme temperatures could theoretically have a small effect on the rate of decay, for most isotopes, temperature does not significantly influence the decay process. Radioactive decay is a nuclear process, which is largely ...