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When three-quarters of a radioactive isotope has decayed to become the stable daughter product how many half lives have occured?
When three-quarters of a radioactive isotope has decayed, it means that 1/4 (or 25%) of the original isotope remains. This corresponds to 2 half-lives, because each half-life halves the amount of radioactive material remaining.
When does Parent and daughter isotopes occur?
The daughter isotope is the result of the radioactive disintegration of the parent isotope. For example radium is a product of the uranium disintegration.The two isotopes have different chemical (different atomic numbers, etc.), physical and nuclear properties.
Are all half-lives the same between different element?
No. Some only last a tiny fraction of a second, some last hundreds of thousands of years.
When do the decay series end?
When the element is stable. (apex)
What fraction of a radioactive sample decays after three half lives?
If I take a radioactive sample of 400 moles of an unknown substance and let it decay to the point of three half-lives I would have 50 moles left of the sample. 1/2 of what is left will decay in the next half-life. At the end of that half-life I will have 25 moles left of the unknown substance or 4/25.
How many half-lives have passed in a rock containing one eighth of the original radioactive material and seven eighths of the daughter product?
3 half-lives
What are the release dates for Secret Lives - 2003 Her Daughter's Identity?
Secret Lives - 2003 Her Daughter's Identity was released on: USA: August 2003
Can my daughter's father claim her if I am not working but she lives with me and he lives in another state?
Yes
What do you do if you want a daughter?
Adopting a daughter is always a good option. It brings a daughter into your life as well as brightening their lives.
What fraction of your lives you spend sleeping?
Roughly a third.
On Days of Our Lives who is the daughter of Carly manning?
Carly Manning's daughter is Melanie Layton Kiriakis.
Where does Mildred Taylor live?
she lives in Colorado with her daughter
Calculate how many half lives have passed in a rock containing one-eighth the original radioactive material and seven eighths of the of the daughter product?
1/8 = (1/2)3 which is in the form (1/2)n where n is the number of half lives undergone. Therefore the substance has passed three half lives
What do you do if you are paying child support of your daughter and your daughter lives with you?
You don't pay. Somebody needs to get another job.
Where does johnny cash daughter live?
Rosanne lives in New York, Kathy lives in Tennessee, Cindy lives in California and Tara lives in Oregon.
What fraction of your lives are spent sleeping?
Roughly 1/3
Where does Meg Rosoff live?
She lives in London with her daughter and husband
