As of 2013, the Palo Verde Generating station in western Arizona is the largest nuclear plant in the U.S. A product of a nuclear power plant is the isotope cesium-137, which has a half-life of 30 years. How long will it take for this isotope to decay to one-sixteenth its original amount

Q: Q3) The activity of 1 gram of radium (226Ra) is exactly 1 Ci. The half-life of radium (in years) is-…

A: We have m=1 gm of Radium (R88226a) whose activity is given to be A=1 Ci. We need to find the half…

Q: All the very heavy atoms found in the earth were created long ago by nuclear fusion reactions in a…

A:

Q: 18.Examine the table.  Isotope Half-Life (yrs) Carbon-14 5.715x10^3 Plutonium-239 2.41x10^4…

A: Given that, The half-life of Carbon-14 is 5.715×103 years The half-life of Plutonium-239 is 2.41×104…

Q: One of the dangers of radioactive fallout from a nuclear bomb is its 90Sr, which decays with a…

A: The expression for the required ground area is,

Q: Sihle, an archaeologist from UWC finds an ancient wooden axe handle at an excavation site at…

A: Write the expression of decay rate. N=N0e-tt1/2

Q: The half-life of the radioactive nucleus Ra(88, 226) is about 1.6 ×10^3 yr. what is the decay rate…

A:

Q: How many nuclei of a radioactive substance of half life 1 year will decay in five years assuming…

A: Given data:  Half life = 1 year Time (t) = 5 years The original number of nuclei (N0) = 2048…

Q: An archeologist discovers the bones of a person believed to have been dead for 600 years. Using…

A: Half-life of radioactive element:  = 5.73 x 103 y Activity of radio active element: A(t) = 0.259 Bq…

Q: 2. An isotope of sodium 24N a has a half-life of 15 hours. A sample of this isotope has a mass of…

A:

Q: The material that formed the earth was created in a supernova explosion approximately 6 billion…

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Q: a) A certain radioactive has a half life of 20 years. 1: Calculate the disintegration constant of…

A: We are allowed to give the explanation of first question only which is given below.  Please repost…

Q: 1The half-life of Calcium-47 is 3.91 x 105 seconds. A sample contains 4.11 x 1016 nuclei. How much…

A: We are authorized to answer one Question at a time, since you have not mentioned which question you…

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

Q: A nucleus decays by emitting a beta particle. Which is the parent nucleus for the product nucleus…

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Q: A geologist finds an old rock and wants to determine its age using rubidium-strontium dating. This…

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Q: While studying the properties of a sample of material obtained from an excavation site, you discover…

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Q: Calculate the mass of a sample of (initially pure) 40K that has an initial decay rate of 1.70 * 105…

A: The initial decay rate,

Q: he isotope neptunium-229 ( 229 93Np) undergoes alpha (4 2He) decay. Write the reaction equation and…

A:

Q: 4. A radioactive sample, with an initial mass of 28 mg, has a half - life of 5 days. What is the…

A:

Q: The steps below show three of the steps in the radioactive decay chain for 232 90Th. The half-life…

A: Given: The steps below show three of the steps in the radioactive decay chain for 232 90Th. The…

Q: Sihle, an archaeologist from UWC finds an ancient wooden axe handle at an excavation site at…

A:

Q: | The complete expression for the decay of the radioactive hydrogen isotope tritium may be written…

A:

Q: Find the missing value for the radioactive isotope. (Round your answer to two decimal places.)…

A: we know that  decay constant λ =ln2half lifeand m=m0e-λt

Q: After long effort, in 1902 Marie and Pierre Curie succeeded in separating from uranium ore the first…

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Q: After three half lives have gone by, what fraction of a sample of a radioactive isotope remains?

A: A half-life is a time period during which nuclei of radio-active sample becomes half of its initial…

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: The formation of helium nucleus, from the fusion process of two deuterium nudei is shown as below:…

A: For the following problem, we have to select the best alternative for true statement.

Q: Two radioactive nuclei, A and B have the same amount at the beginning. After 15 days, the number of…

A: The half life of B is longer than A.

Q: When radioactive 38Sr90 emits a negative beta particle, the isotope that is formed is: A.…

A: Given data:  The Radioactive substance  S3890r Type of decay: Negative beta decay Required: Nucleus…

Q: Natural Uranium, as found on earth, consists of two isotopes in the ratio of ^ 235 U/ ^ 238 U=0.07…

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Q: Strontium is chemically similar to calcium and can replace calcium in bones. The radiation from 90Sr…

A: Calculate the number of half-lives to decay the sample of 0.01% of 90Sr.

Q: . The activity of a radioactive sample decreases by 93.75 % in 2.5 years. What is the half-life of…

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Q: Answer the following questions regarding the radioactive isotope radium-226. A.Write a nuclear…

A: Given, Radium isotope Ra-226

Q: In radio-pharmacy Alpha, Beta-plus, Beta-minus and Gamma decay are all different forms of…

A: Solution Beta-minus decay.  In Beta minus decay neutron is converted into proton and electron with…

Q: All the very heavy atoms found in the earth were created long ago by nuclear fusion reactions in a…

A: Given values: Half life of U235,  t12(U235)=7.04×108 yr Half life of U238,  t12(U238)=4.47×109 yr…

Q: Carbon-14 has a half-life of 5730 years. A sample of wood has been recovered by an archaeologist.…

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Q: You are experimenting with a radioactive sample of polonium. At the end of 14.0 minutes, exactly…

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Q: State which of the following statements are true and which are false: a)  After two half-lives, all…

A: NOTE: As per guidelines, I can solve first question. If you need help with other questions kindly…

Q: By natural radioactivity, U-238 emits an alpha particle. The heavy daughter nucleus is called…

A: In alpha decay, the atomic number of the daughter nucleus will be less than that of the parent…

Q: The half-life of cobalt-60 is 5.3 years, while that of strontium-90 is 28 years. Suppose you have a…

A: It is given that the initial number of atoms of cobalt-60 and strontium-90 are equal. The half-life…

Q: n 1986 the Chernobyl nuclear power plant exploded, and scattered radioactive material over Europe.…

A: Half life of Cesium-137 t1/2=30 years. Let initial amount of Cesium nuclei be No. We need to find…

Q: A substance decays according to the formula Q = 120(0.5)"48.. (a) What is its half-life? (Do not…

A: Q= Q0  (0.5)t/T12

Q: The Half life of Iodine-131, used in thyroid treatments, is 8.0d. At a certain time, an amount of…

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Q: As shown how the number of nuclei of one particular isotope varies with time. What is the halflife…

A: Given data The initial number of nuclei is No=1000000 The nuclei after time t is N=250000 The time…

Q: Initially, a particular sample has a total mass of 360 grams and contains 512 x 1010 radioactive…

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Q: he half-life of the radioactive nucleus 88 Ra 226 is 1.6 × 10 3 yr. If a sample initially contains…

A:

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.