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31.5 Exercise 12

Avg difficulty 2.5

Data from the appendices and the periodic table may be needed for these problems.

(a) Calculate the activity RR in curies of 1.00 g of 226Ra^{\text{226}} \text{Ra}. (b) Discuss why your answer is not exactly 1.00 Ci, given that the curie was originally supposed to be exactly the activity of a gram of radium.

OpenStax College Physics 2e, 31.5 Half-Life and Activity, exercise 12

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Adapted from College Physics © 2022 Rice University. Licensed under CC BY 4.0. Sources: College Physics 2e, College Physics for AP® Courses 2e. Imported at revision f98d7a7.