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O See Hint If exactly 1.00 ug of 226Ra was used to paint the glow-in-the-dark dial of a wristwatch made in 1914, how radioactive is the watch in 1995? Express your answer in becquerels (Bq). The half-life of 226Ra is 1.60 x 103 years. 3488 x 104 Bq - O See Hint Express your answer from above in microcuries (uCi). 9.427 µCi -

O See Hint If exactly 1.00 ug of 226Ra was used to paint the glow-in-the-dark dial of a wristwatch made in 1914, how radioactive is the watch in 1995? Express your answer in becquerels (Bq). The half-life of 226Ra is 1.60 x 103 years. 3488 x 104 Bq - O See Hint Express your answer from above in microcuries (uCi). 9.427 µCi -

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter19: The Nucleus: A Chemist's View
Section: Chapter Questions
Problem 6RQ
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In the early 1900s, 226Ra was used to paint glow-in-the dark dials on wristwatches. 3rd attempt O See Hint If exactly 1.00 ug of 226Ra was used to paint the glow-in-the-dark dial of a wristwatch made in 1914, how radioactive is the watch in 1995? Express your answer in becquerels (Bq). The half-life of 226Ra is 1.60x 103 years. 3,488 x 104 Bq + O See Hint Express your answer from above in microcuries (µCi). µCi - 9.427 x 10 -5
Transcribed Image Text:In the early 1900s, 226Ra was used to paint glow-in-the dark dials on wristwatches. 3rd attempt O See Hint If exactly 1.00 ug of 226Ra was used to paint the glow-in-the-dark dial of a wristwatch made in 1914, how radioactive is the watch in 1995? Express your answer in becquerels (Bq). The half-life of 226Ra is 1.60x 103 years. 3,488 x 104 Bq + O See Hint Express your answer from above in microcuries (µCi). µCi - 9.427 x 10 -5
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