Question
The half-life of thorium-227 is 18.72 days. How many days are required for three-fourths of a given amount to decay? 1. 65.52 days 2. 28.08
The half-life of thorium-227 is 18.72 days. How many days are required for three-fourths of a given amount to decay?
1. 65.52 days
2. 28.08 days
3. 74.88 days
4. 9.36 days
5. 37.44 days
6. 84.24 days
7. 56.16 days
8. 46.80 days
9. None of these
10. 18.72 days
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Physics Of The Plasma Universe
Authors: Anthony L Peratt
2nd Edition
1461478197, 9781461478195
