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Can someone help me pls

Can someone help me pls-example-1
User Kevin Leo
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1 Answer

1 vote

Answer:

50 years

12.5 g

2.5 g

Step-by-step explanation:

The half-life is the time it takes for the sample to become half of the original. At 0 years, none of the sample has decayed. At 50 years, half of the sample has decayed. This means that the half-life is 50 years.

If you look at the diagram, at 150 years, you will have 1/8 of the original amount. If you start with 100 g, you will have 12.5 g after 150 years.

100/8 = 12.5

Looking at the diagram, you can see that at 100 years, you will have 1/4 of the original amount. If you start with 10 g, you will have 2.5 g after 100 years.

10/4 = 2.5

User MaYaN
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