The half-life of a radioactive isotope is the time it takes for a quantity of the isotope to be reduced to half its initial mass. Starting with 200 grams of a radioactive isotope, how much will be left after 4 half-lives?   Use the calculator provided and round your answer to the nearest gram.

Q: By READING the R vs t graph shown below, determine R. & the R(x10¹² decays/s) 12 mean life.

A: Half life is time taken to reduces the number to half.

Q: If the half-life of Uranium 235 is 700 million years, what would its third-life be?

A: Given data: The half life of Uranium 235 is t1/2=700 million years.   The expression for the…

Q: The half life for the decay of carbon-14 is 5.73*10^3 years. Suppose the activity due to the…

A:

Q: A radioactive material has a half life of 4.6 minutes.  After 8.1 minutes, which percentage of the…

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Q: The half-life of radium-226 is 1600 years. How long will it take for 10.0 mg of radium-226 to decay…

A: Using half life concept to solve the problem

Q: A radioactive sample containing approximately 6.52×10¹3 radioactive nuclides has a half-life of 5730…

A: Radioactive nuclides are those nuclides that are unstable. This happens due to the mismatch between…

Q: hoose an isotope and describe its radioactive decay process and how it is used. Write a minimum of…

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Q: Suppose that you are given a 200 gram sample of a radioactive substance with a half-life of 45 days.…

A: Radioactive decay is the process by which unstable nuclei spontaneously lose energy to become…

Q: Suppose that half a sample of radioactive nuclei has decayed in a given time T. How long will it be…

A: The time for which a radioactive active substance decays to half of its original value is called the…

Q: Supposed that a radioactive substance has decayed until only of 1/8 of it remains. How many…

A: let initial number of Nucleons= N0 remaining number of Nucleons= N =N08

Q: If the parent isotope starts with 100 grams, but your samples yield only 12.5 grams of the parent…

A: Given Data Initial mass of sample is M= 100 g Final mass is m = 12.5 g

Q: If a sample of a radioactive isotope has a half-life of 3 years, how much of the original sample…

A: The half-life of the sample = 3 years (a) That means, after every 3year the sample becomes half of…

Q: Substance X has a half-life of 10 years, if you start with 1000 grams, how much will be left after…

A: Given data:  Half life (t1/2)= 10 years Initial quantity (N0) = 1000 grams  Time (t)  = 100 years…

Q: 20.0 hours after being ingested 74.5 % of the original radioactive atoms have decayed or been…

A: Given,The amount of particles initially = N0The particles present after 20 hours, Nt = 0.255 ×N0…

Q: If a radioactive isotope has a half-life of 3 minutes, how much of the initial sample will be left…

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Q: If a sample contains 20g of an isotope that has a half life of 1000 years. How much will be left…

A: Given data:  Initial amount of sample (N0) = 20 g Half life (T1/2) = 1000 years Required: Remaining…

Q: Show what is meant by the radioactive half-life of a radionuclide, using a suitable sketch graph.…

A: Here Two Half Lives Shown in GRAPH  One At Time 2 Where Value of undecayed Nuclei left is 50 percent…

Q: A pure carbon archaeological artefact has an age of 24421 years and emits 14 electrons per minute.…

A: This is a question regarding the activity of a radioactive substance. The activity of a substance at…

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.