How many years must the radioactive sample of Exercise 21 be maintained before the disintegration rate falls

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How many years must the radioactive sample of Exercise 21 be maintained before the disintegration rate falls to 101 dis min^–1?

Exercise 21

The disintegration rate for a sample containing ¹⁰¹₄₅Rh as the only radioactive nuclide is 4650 dis h^–1. The half-life of ¹⁰¹₄₅Rh is 3.30 years. Estimate the number of atoms of ¹⁰¹₄₅Rh in the sample.

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General Chemistry Principles And Modern Applications

ISBN: 9780132931281

11th Edition

Authors: Ralph Petrucci, Jeffry Madura, F. Herring, Carey Bissonnette

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Question Posted: Dec 03, 2023 05:41 AM

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How many years must the radioactive sample of Exercise 21 be maintained before the disintegration rate falls

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