Lungile, a radio-pharmacist based at iThemba LABS, measures the activity of a specific isotope with a Geiger counter and it shows 200 counts per minute at 12h00. At 15h00, Lungile notices a huge decrease in activity and the the Geiger counter now only records 25 counts per minute. NOW Use the counts/minute to determine the half-life of this radioactive isotope? FULLY EXPLAIN your choice under the RATIONALE section below! A. 3 hours B. 8 hours C. 1 hour D. 2 hours

Lungile, a radio-pharmacist based at iThemba LABS, measures the activity of a specific isotope with a Geiger counter and it shows 200 counts per minute at 12h00. At 15h00, Lungile notices a huge decrease in activity and the the Geiger counter now only records 25 counts per minute. NOW Use the counts/minute to determine the half-life of this radioactive isotope? FULLY EXPLAIN your choice under the RATIONALE section below! A. 3 hours B. 8 hours C. 1 hour D. 2 hours

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter30: Nuclear Physics

Section: Chapter Questions

Problem 34P

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