| half-life |
The time required for the amount of a reactant to decrease to half its initial value.
출처: xenon.che.ilstu.edu/genchemhelphomepage/glossary/h...
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| half-life |
The time required for half of a given sample of a radioactive isotope to decay to its daughter isotope.
출처: imnh.isu.edu/digitalatlas/glossary/letter.asp
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| half-life |
The time required for one-half of a specified substance to degrade or become inert.
출처: www.pca.state.mn.us/gloss/glossary.cfm
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| half-life |
The time necessary for half of the atoms of a parent isotope to decay into the daughter isotope.
출처: college.hmco.com/geology/resources/geologylink/glo...
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| half-life |
1. The time required for a pollutant to lose one-half of its original concentration or example, the biochemical half-life of DDT in the environment is 15 years. 2. The time required for half of the atoms of a radioactive element to undergo self-transmutation or decay (half-life of radium is 1620 years). 3. The time required for the elimination of half a total dose from the body.
출처: www.e11th-hour.org/resources/backgrounders/environ...
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