A radioactive sample in a lab is found to have a decay constant of 78x10-¹2 s¹. From this data estimate, the half-life of the radioactive sample
Q: The half-life of a particular element is 330 days. What is its decay constant?
A: The relationship between Half life t1/2 and decay constant λ is t1/2=ln2λ=0.693λ where ln2 is…
Q: The disintegration rate of certain radioactive substance at any instant is 4750 disintegrations per…
A: To find- Half life (T)=?Given-N0=4750N1=2700t=5 min
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Q: ults vary with the amount of the sample. The decay constant represents a percentage of the sample…
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Q: Krypton-81m (81mKr) is a radioactive isotope with a half-life of 13.1 s that is often used in…
A: The correct option is (e) 50.26 s
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A: Radioactive decay is the process by which an unstable nucleus becomes stable. The rate at which this…
Q: the decay constant or the beta decay of ^99 43Tc was found to be equal to 1.0x10-13/s. What is the…
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Q: sample of radioactive material starts with 0 grams. After 3 half lives have passed, how much…
A: Half-life is the amount of time it takes for one half of a sample of a radioactive isotope to decay.…
Q: The radioactive isotope 209 Po has a half-life of 103 years. How long would it take 84 for only 4.00…
A: Given: The half-life time is 103 years. The remaining sample is 4 g. The total amount of the sample…
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Q: The decay constant of a radioactive source is 752 per year. Then its half- life equals: *
A: Step:1 The Time taken for a radioactive atom to disintegrate to half of its original…
Q: radioactive sample initially undergoes 12.0×10^4 decays/s. Twenty-four hours later, its activity is…
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Q: A radioactive sample is observed for 5 days. After 5 days the amount of the sample is found to be…
A: Radioactive decay is the process by which an unstable nucleus becomes stable. The rate at which this…
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: Consider a pure 4.0g sample of radioactive gallium-67. If the half-life is 78 h, how much time is…
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Q: A radioactive sample has a decay constant of 2.97 x 10 s¹¹. Estimate the half-life.
A: Unstable nuclei decay into a stable state. This process is called radioactivity. The rate at which…
Q: The half-life of a particular element is 330 days. What is its decay constant?
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Q: Determine the half-life (in s) of a radioactive sample that contains 1.10 x 105 atoms of the…
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Q: A radioactive sample studied in a lab is found to have a half-life of 48 hours. If the initial…
A: Radioactive decay is the process by which an unstable nucleus becomes stable. The half-life for a…
Q: What is the half-life in days of a radioactive sample with 3.0x1015 atoms and an activity of 6.2x108…
A: In this problem, we are given the number of atoms in a radioactive sample (N = 3.0x10^15 atoms) and…
Q: The Half-life of certain radioactive sample is 30 minutes. At 2.00 PM, the decay rate is measured to…
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Q: A radioactive sample contains 9.5 x 1017 atoms of a nuclide that decays at a rate of 5.4 x 1013…
A: Radioactivity is the process of decay of heavy nuclei due to an unstable nuclei or due to a…
Q: Platinum-175 decays through alpha decay and forms osmium-171. Estimate the kinetic energy of the…
A: Alpha decay is one of the three main forms of radioactive decay. In alpha decay, the unstable…
Q: The magnitude of the rate of decay of a radioactive material is 0.47 times the square of the amount…
A: Note: answer and explanation is given in step 2 in image format..
Q: Based on data acquired during a radioactive decay lab using an unusual assortment of geometrically…
A: The trendline equation for radioactive decay can be expressed as: N(t)=No×e(-λt) where: N(t) = the…
Q: Marie and Pierre Curie managed to extract 1 mg of radium from ten tonnes of uranium ore in 1898. The…
A: The decay constant for radium-226 can be calculated using the following formula: λ = ln(2)/ t½ Where…
Q: A radioactive sample is prepared; 10.78 hours later, only 1/16th of the original sample remains.…
A: Activity N=N0e-λt 10.78 hours later, only 1/16th of the original sample remains N016=N0e-λ10.78…
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: radioactive substance has a half life of 2120 years. A) Determine the rate constant for the decay…
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Q: The activity of a nucleus is the product of number of nuclei present in the sample and the decay…
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Q: What is the half-life of a radioactive isotope if the activity of a sample drops from 6,080 cpm to…
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Q: A radioactive sample studied in a lab is found to have a half-life of 25 hours. If the initial…
A: Radioactive decay is the process by which an unstable atomic nucleus spontaneously emits particles…
Q: A radioactive sample has a half-life of 28 mins. If the initial amount of sample was 2 g, estimate…
A: Radioactive decay takes place when an atomic nucleus becomes unstable. The rate of decay is known as…
Q: Strontium-90 is a radioactive material that decays according to the function A(t) = An e -0.0244t…
A: Given that---- initial amount of material A0 = 500 g. Radioactive material decay function-----…
Q: After 1.86 days, the activity of a sample of an unknown type of radioactive material has decreased…
A: The objective of this question is to find the half-life of a radioactive material given the time it…
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: unlabeled container of radioactive material has an activity of 78 decays/min. Four days later the…
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Q: After 85 years, 80 % of a radioactive material decays. What is the half-life?
A: Given, Time,t=85yrs=85×3.154×107sPercentage of the material decay= 80% We have the expression for…
Q: If it is known that 87% of an initial radioactive sample remains after 3 days, what is the decay…
A: Given: The amount of radioactive decay is 87% of the initial amount. The time is 3 days.
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…
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