scientist begins with 525 mg of a radioactive substance. After 3 hours, the sample has

Q: A tumor is injected with 0.8 grams of Iodine-125, which has a decay rate of 1.15% per day. Write an…

A: Given: To find the amount of Iodine -125 that would remain in the tumor after 60 days, Formula used:…

Q: The count in a bacteria culture was 500 after 10 minutes and 1900 after 30 minutes. Assuming the…

A:

Q: The half-life of Carbon-13 is 5750 years. Samples taken at an excavation site show that a one…

A:

Q: If a certain substance exponentially decays from 100 grams to 20 grams in 3 years. How much of the…

A:

Q: A wooden artifact from an ancient tomb contains 55 percent of the carbon-14 that is present in…

A:

Q: The half-life of Radium-226 is 1590 years. If a sample contains 200 mg, how many mg will remain…

A:

Q: The half-life of a radioactive substance is 4000 years. How long will it take for the substance to…

A: Half-life of a radioactive substance  years. i.e.  Let original size of substance is , Then

Q: Oganesseon 294 has an exponential decay rate of 38.51% per millisecond what is the half life

A: Let N(t) be the amount of Oganesseon 294 at time t. Exponential decay rate is:  r = 38.51%

Q: A wooden artifact from an ancient tomb contains 35 percent of the carbon-14 that is present in…

A: Radioactive decay

Q: A scientist begins with 450 grams of a radioactive substance. After 55 minutes, the sample has…

A: