Radium-226 decays by emitting an alpha particle. A 0.5-gram sample of pure radium-226 emits 1.83x1010 decays per second. The half-life of the decay is 1600 years. What will be the decay rate of this sample after 4800 years?

Q: B. Carbon-14 is a radioactive isotope of carbon that has a half-life of 5600 years. It is used…

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Q: radioactive

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Q: it has taken 30 days for a particular nuclide to decay to 25% of its original activity. what is the…

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Q: When thorium decays by emitting a beta particle, what is the atomic number of the resulting nucleus?

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Q: A radioactive sample contains 2048 nuclie. How many of its nuclei decay after two half lives?

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Q: Suppose we have a sample containing 1.91 mCl of radioactive 131 (t,2 - 8.04 d). (a) How many decays…

A: Solution: Given that half-life of the sample, t1/2 = 8.04 days = 694656 s. Time for decay, t = 5week…

Q: One of the nuclear fission reaction that can happen in a nuclear reactor is the fission of…

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Q: radioactive sample was measured 51.3 years ago. It had an activity of 8888.5 Bq. Today, its activity…

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Q: radioactive

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Q: 15. When U-232 undergoes alpha decay to Th-228, a mass lost is sustained. (1) Find the mass defect…

A: The exact mass of U-232 is 232.0372 amu. The exact mass of Th-228 is 228.0287 amu.The exact mass of…

Q: What is the Decay Rate (k), if the Half Life is 10.5 days?

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Q: 64 g of a radioactive substance is prepared. 105 hours later, only 16 g remains. To the nearest…

A: To the nearest hour, the radioactive half-life of the substance is 52.5hours

Q: How many half-lives must elapse until (a) 77% and (b) 99 % of a radioactive sample of atoms has…

A: Solution in answer, feel free to ask for clarifications if needed.

Q: Radioactive element AA can decay to either element BB or element CC.The decay depends on chance, but…

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Q: The half-life of a radioactive isotope is 140 d. How many days would it take for the decay rate of a…

A: Concept: The time required for a quantity to reduce to half of its initial value is known as…

Q: One method for determining the age of ancient objects is by radiocarbon dating. Natural processes…

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Q: A group of geochemists have been analyzing a sample of radioactive material. After plotting ln(a)…

A: Given: slope value of graph, S=-1×10-9 s-1

Q: Tritium, the hydrogen isotope of mass 3, has a half-life of 12.3 y. What fraction of the tritium…

A: Not all combinations of neutrons and protons are stable. When there are too less or too many…

Q: The half-life of a radioactive isotope is 140 d. How many days would it take for the decay rate of a…

A: Given that, Half life of the isotope, T = 140 days  We know that,  The half life is the time in…

Q: A pure sample of a newty discovered radioactive isetope is discovered. I has a halt-ife of 59 min.…

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Q: Plutonium-239 (atomic number 94) is a by-product of nuclear power plants. It decays via alpha and…

A: A) decay constant = 0.693/half life = 0.693/24100 = 0.0000287 yr-1 = 0.693/(24100*365*86400) = 9.12…

Q: A pure sample of a newly discovered radioactive isotope is discovered. It has a half-life of 78 y.…

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Q: a. Compute the binding energy of the reactants and of the products in the nuclear fusion reaction 2H…

A: Write the given reaction of nuclear fusion, and the expression for the binding energy, respectively.…

Q: The original number of atoms in a sample of a radioactive element is 4.00x10-0 . Find the time it…

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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.