100 75- 50 25 12.5- (a) (b) Half lives elapsed Percent of elements present
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Critical thinking and discussion questions. Use complete sentences, correct spelling, and the information presented in chapter 18 to answer the questions below.
In the chart of radioactive decay shown below:
(a) how many half-lives have elapsed by time?
(b) how many half-lives have elapsed by time?
![100
75-
50
25
12.5-
(a)
(b)
Half lives elapsed
Percent of elements present](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdd8c508c-74b8-44fb-b1bf-ab299286253e%2F55fa5b7d-bd8a-4976-9ac0-650104b7115e%2F54pfz05_processed.jpeg&w=3840&q=75)
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