Chemistry

Chemistry, 30.08.2019 01:10, jenah6114

223ra decays by alpha emission with a half-life of 11.43 days. for a 1.0g sample of 223ra, after one half-life, what mass of 223ra remains? what has happened to the remaining mass?

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Chemistry, 06.09.2019 16:10, chem1014

13n decays with a half-life of approximately 10 min to produce 13c, a stable isotope of carbon. for a 1.0g sample of 13n, after one half-life, what mass of 13n remains? what has happened to the remaining mass?

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223ra decays by alpha emission with a half-life of 11.43 days. for a 1.0g sample of 223ra, after one...

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