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18 votes
18 votes
257Lr has a half-life of 8 seconds. How long will it take for 75% of the sample to decay?

User Cool Eagle
by
2.8k points

1 Answer

5 votes
5 votes

Answer:

6 seconds

Step-by-step explanation:

1/4 = 25%

1/4 to 8 seconds would be 2/8 so

25 + 25 + 25 =75

User Ferroao
by
2.9k points