Which of the following conditions is not necessary for a sustained chain reaction ? A) Fast moving neutrons. B) More neutrons should be released in the fission process than is required to induce fission. C) Moderators to slow down neutrons.

Q: What two processes are represented by the following transmutation reaction? 1271 + In - - > 128Xe +…

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Q: Isotopes X goes through a BETA decay and becomes isotape Y. isotape Y goes through an ALPHA decay…

A: The different types of radioactive decay are as follows; α-decay               ⇒             XZA  →…

Q: a. Two or more nuclei combine to form one larger nucleus in the process of nuclear_ i) fission, ii)…

A: We need to fill answers for the given short questions.

Q: Directions: Identify each as a fusion , fission , or both kinds of reactions: sed in nuclear power…

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Q: Use your knowledge obtained while studying nuclear reactions to explain how the rate of decay of a…

A: The half-life of the given radioactive reaction is the time at which the reactant is disintegrated…

Q: n the following fission reaction, identify the missing product.                23592U  +  10n  -->…

A: In nuclear chemistry nuclear fission is a nuclear reaction. It is a radioactive decay process.  In…

Q: Which of the following would be considered the cons of using nuclear fission? Check all that apply.…

A: Solution- Nuclear fission- It defines as Nuclear fission is the splitting of a heavy atomic nucleus,…

Q: eological site conta

A: Given N=2,400 decays/min m=500g=0.500kg Half-life 0f  C14 ,T12  =5,730 year

Q: The function of the moderator in a nuclear is to O stop chain reaction Reduce the speed of neutrons…

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Q: Answer the following questions regarding the radioactive isotope polonium-210. A.Write a nuclear…

A: Since. Your question has multiple subparts. We will solve only the first three sub-parts to get the…

Q: A laboratory rat is exposed to an alpha-radiation source whose activity is 14.3 mCi. (a) What is the…

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Q: What is the half life of a radioactive sample , if 3/4 of its nuclei decay in 2 years ?

A: Given:The amount of nuclear decay in 2 years = ¾ th of initial massAssume that the initial mass =…

Q: A wooden artifact is found in an ancient tomb. Its carbon-14   activity is measured to be 61.0% of…

A: Activity of carbon-14 = 0.61 R/Ro = 0.61 We will use the below equation for decay process- R=…

Q: What isotope is used for radioactive dating of previously lived entity ?

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Q: 18.write describing what happens to a uranium nucleus during nuclear fission

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Q: A) A piece of charcoal that has one-half the radioactivity of a living tree died approximately 5,568…

A: Radioactive decay follows first order kinetics. It has the following relation between t1/2 and k: k…

Q: A sample of Carbon is observed to have 15g left after an estimated time of 10000years. Determine the…

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Q: 5. A sample of wood from a Thracian chariot found in an excavation in Bulgaria has C-14 activity of…

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Q: How many nuclei of Uranium-238 remain in a rock if the activity registers 464. decays per second?

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Q: 19.write sentences evaluating the use of nuclear fission to generate electric energy provide at…

A: When a heavy unstable nucleus undergoes radioactive decay and form two new element having nearly…

Q: NUCLEAR REACTIONS Zinc-62 decays with a half-life of 9.186 hours. 1. Write the balanced nuclear…

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Q: Write the nuclear reaction of I-131 that undergo alpha, alpha, alpha, beta, positron emission, gamma

A: Final product is tin

Q: Think about how a chain reaction could be controlled without delayed neutrons. Is it possible? What…

A: A chain reaction is a process in which neutrons released in fission produce additional fission. This…

Q: How many nuclei of Uranium-238 remain in a rock if the activity registers 558. decays per second?

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Q: Nuclear reactions that continue because they form particles that carry on the reaction are called A…

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Q: . On October 26, 2019, an archaeologist unearthed a radioactive specimen. Month later, he weighed…

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Q: What type of reaction occurs when a heavy nucleus such as U-235 splits into two or more parts? a.…

A: We have to predict the type of reaction.

Q: What is the missing symbol in this plutonium fission reaction?

A: The given plutonium fission reaction is, For atomic number of the unknown = 94 - 38 = 56 The symbol…

Q: 1. (a) Determine the relative probability that fission reaction will occur in absorption by 20%…

A: Given in following question fission reaction probability 20% enriched uranium fuel of fast 10 Kev…

Q: A radioactive source containing Y-90 has an initial activity of 20 µC a) How many decays per second…

A: The radioactive source containing Y-90 has an initial activity 20 μCi which equals…

Q: Iron-55 nuclei are bombarded with carbon-12 nuclei to produce a beta particle and one other nuclei.…

A: According to question:i) F2655e  + C612 → β-10 +........we know that, i)  the sum of mass number on…

Q: Bismuth-214 undergoes a radioactive decay chain before it reaches nudear stability, forming the inal…

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Q: Complete the following nuclear equation.   86 ?Rn      ------ >       ? 2 16 ?     +  2 4He

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Q: Why can fusion and fission both produceenergy? Explain.

A: Nuclear fusion: the combination of two lighter nuclei to form a heavier nuclide. Both fission and…

Q: what is the half life of an isotope that decays to 25% of its original activity in 68.9 hours?

A: For a first order reaction, rate constant can be calculated as

Q: Cesium 137 is a commonly used isotope in the treatment of some cancers, someone you know may have…

A: The reactant given is Cesium 137 i.e 13755Cs.

Q: Predict the mode of decay begin 65^N undergoes. Positron Beta It is stable and does not undergo…

A: The beta decay of 65Ni is shown

Q: A rock contains a Pb-206 to U-238 mass ratio of 0.473:1.00. Assuming the rock did not contain any…

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Q: 5.00 hours of decay, 3.4g of the substance remain. What is the

A: Initial mass of substance is 17.8g Mass of substance after left is 3.4g Decay time 5 hours

Q: When a radioactive isotope decays and the resulting isotope is also radioactive, it will decay, and…

A: a. Half-life of Rn-222 is 3.8 days.

Q: Carbon-14 has a half-life of 5730 yearsyears. In a plant fossil, you find that the 14C14C has…

A: Given data:

Q: How many neutrons are released in the transmutation reaction below: 92 6 98

A: Transmutation reaction is a nuclear reaction in which an element is converted to another element. It…

Q: 65 Predict the mode of decay Ni undergoes. Positron Alpha Beta It is stable and does not undergo…

A: Given that  Decay of 65Ni

Q: Zinc-62 decays with a half-life of 9.186 hours. 1. Write the balanced nuclear reaction of Zn-62 as…

A: As per the rules, only three sub-parts can be answered:

Q: Predict the mode of decay begin 65^ Ni undergoes.

A: The heavier isotopes having mass number more then 200 under go alpha decay. Light isotopes( mass…

Q: The output nuclei of fission and fusion reactions are always more stable than their input nuclei.…

A: The answer to the following question is-