It is noted that a sample of 134La with a half-life of 6.5 minutes has an activity of 2.6 Ci. What was its activity 72 minutes ago?

asked Jul 6, 2020 166k views

1 vote

by UDude

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6 votes

Answer:

36//

Step-by-step explanation:

(½)^t

(½)^72

72/2=36//

Joel Almeida answered Jul 13, 2020

7.6k points

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