Half-Life definition, as used in chemistry, chemical engineering, and physics. . half life; radioactivity; definitions; chemistry glossary; radioactive decay

Half-Life

Definition: Effective half-life: Effective half-life denotes the halving of radioactive material in a living organism by means of radioactive decay and biological excretion.

Half-life is a term that describes time. The definition is: The time required for one-half of the radioactive (parent) isotopes in a sample to decay to radiogenic (daughter .

The term half-life is one we apply to radioactive materials to talk about how quickly they decay. The half-life is the time it takes for half of a radioactive half life definition given sample of the unstable .

For example, carbon-14, a radioactive nuclide with a half-life of only 5730 years, is constantly . At present it is equal, by definition, to the activity of any radionuclide .

half-life, measure of the average lifetime of a radioactive substance (see radioactivity radioactivity, spontaneous disintegration or decay of the nucleus of an atom by .

radioactive half-life [�r

The time needed for half of the sample in question to decay. Two half-lives will result in three-quarters of the sample to decay away.

half-life definition: The average time needed for half the nuclei in a sample of a radioactive substance to undergo radioactive decay. The half-life of a substance does not .

We use the radioactive material's half-life to get the age of the material. The half-life is the time it takes for radioactive half life definition 1/2 of the radioactive material to decay, often into a non .

Definition: . Radioactive half-life refers to the decay of radioactive substances. Iodine-131, for .

half-life definition: noun 1. The time required for half the nuclei of a specific radionuclide or radioactive substance to undergo radioactive decay. Also called physical half .

A half-life describes the decay of discrete entities, such as radioactive atoms. In that case, it does not work to use the definition "half-life is the time required for exactly .

H half-life (biological) Definition (english only) The time required for a living organism to . Half-life: Radioactively, half-life is the time required for half of a given quantity .
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