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slideplayerImage: slideplayerThe half-life of a radioactive isotope is the time it takes for half of the atoms in a pure sample of the isotope to decay into another element. It is a measure of the stability of an isotope; the shorter the half life,the less stable the atom.
Kids - Encyclopedia > Half-life
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Radioactive isotopes decay from their parent isotope to daughter isotope at a constant rate (under any circumstances). The rate at which a parent isotope decays to its daughter isotope is considered one half life. Carbon-14 has a half life of 5730 years and its daughter isotope is Nitrogen-14.
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Which radioactive isotopes has the shortest half life
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, then in 3 years only 25 grams would remain. During the next 3 years, 12.5 grams would remain and so on.4/5(1)
Half life of Radioactive Isotopes - Chemistry Mr Nguyen
Half life of Radioactive Isotopes - Chemistry Mr Nguyen.. Final mass = 100.0 g x (1/2) 3 , which gives us 12.5 grams. A 50.0 g sample of N-16 decays to 12.5 g in 14.4 seconds. What is its half-life? Ans: 7.2 seconds Answer was discussed in class. The half-life of K-42 is 12.4 hours.Author: Cinnamonspider