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Q: What is the half life of a radiosotope if a 100 g sample becomes 25 g after 18 years?
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What is the half life of a radioisotope if a 100g sample becomes 25g after 18 years?

9 years


What is the half life of a radioisotope if a 100g sample becomes 50 g after 20 years?

20 years (APEX)


What is the half of a radioisotope if a 100 g sample becomes 50 g after 20 years?

20


If a half life is 2000 years will a large amount of this radioactive sample be around for a long time?

Half-life of 2000 years means that after 2000 years, half of the sample will decay - so of course the other half of the sample is still around.Half-life of 2000 years means that after 2000 years, half of the sample will decay - so of course the other half of the sample is still around.Half-life of 2000 years means that after 2000 years, half of the sample will decay - so of course the other half of the sample is still around.Half-life of 2000 years means that after 2000 years, half of the sample will decay - so of course the other half of the sample is still around.


What does the half life tell about a radiosotope?

Its stability. The longer the half-life, the more stable is the isotope.


What is the half life of a radioisotope if a 100 g sample becomes 50 g after 20 years?

20 years


What is the half life of a radioisotope if a 100 g sample becomes 25 g after 18 years?

9 years.


What is the half-life of a radioisotope if a g sample becomes g after 16 hours?

16 hours.


What is the half life of a radioisotope if a g sample becomes 5 g after 2 days?

1


What is the half life of a radioisotope if a 50 sample becomes 25 after 18 days?

18 days


What is half life of a radioisotope if a g sample becomes g after 16 hours?

16 hours.


What is the half-life of a radio slope if a 20g sample becomes 5g after 2 days?

1 day