Calculate BE/A for 238U. (Most of uranium is 238U .) Note that 238U haseven numbers of both protons and neutrons. Is the BE/A of 238U of significantly different from that of 238U ?

Q: Calculate the nuclide mass and the density of (Li) nuclide, where the nucleon mass is (1.6…

A: Given data,Mass number of Li=7Mass of nucleon=1.6×10-27KgMass of number of Fe=56

Q: VISUALIZATION Modes of Radioactive Decay 140 130 120 110 100 90 80 70 60 50 - Stable Radioactive 40…

A: We have to  select  the correct  option from following  statements about the relative  number  of…

Q: g. Formátion of h. Formation of Polonium-215 through alpha decay through positron emission ISSION

A: Positron emission: Positron emission or beta plus decay is a subtype of radioactive decay called…

Q: 3. What do you know about nuclear fission. Almost IMW power can be produced by burning 3 tons of…

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Q: Decay of which nucleus will lead to the following products: (a) bismuth-211 by beta decay; (b)…

A: a) Bismuth-211 by beta decay = The general nuclear equation for beta decay is, XZA → YZ+1A + e-10…

Q: Write the nuclear equation for the nuclear reaction in which a nuclei undergoes ß- decay and changes…

A: When Barium undergo beta decay it product will be cesium-133 and gamma radiowaves.

Q: The reaction of an α particle with magnesium-25 (25/12 Mg) produces a proton and a nuclide of…

A: The reactions associated with a nuclei resulting in changes of their mass number, energies and…

Q: Which is NOT true: - Decay of daughter isotopes of 222Rn that are deposited on dust particles and…

A: Radon having atomic number 86 with a mass number of 222 is a monoatomic radioactive noble gas.

Q: The nuclide 93Np239 decays by emission of a negative electron. The daughter nucleus will have an…

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is…

Q: NUCLEAR CHEMISTRY: Consider the nuolei 117, 50Sn. Determine its mass defect in kilograms if its…

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Q: With a high value of N/Z, an isotope will tend to decay through Positron Alpha Electron capture Beta

A:

Q: The accompanying graph illustrates the decay of 88 42Mo, which decays via positron emission. What is…

A: The nuclear decay equation for the decay process is    8842Mo ----> 8841Nb + 0+1e

Q: 238U → 234TH + He 92 90 3. How many protons and neutrons are found in the uranium isotope used…

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Q: billion years after he creetion had he amount of raakletior y, ke om uranium decaypd ne he How…

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Q: Nearly all of the protons and neutrons in the seven-to-one ratio at t = 225 s either formed 4He or…

A: The relative abundance of a species with respect to another provides information about the percent…

Q: This figure' shows that the decay "chain" starts with an a decay of 2Ac to produce "Fr, which itself…

A: #Q.2: Given the half-life of Ac225, t1/2  = 9.9 days  Initial mass of Ac225 taken, No = 0.450 mg

Q: The radioisotope 3516S will decay through

A: For the stablity of nucleus N/P ratio for lighter nuclei must be equal to 1. And unstable nuclei…

Q: Which isotope, when bombarded with nitrogen-15, yields the artificial isotope dubnium-260 plus 4…

A: Nuclear reaction: A nuclear reaction must cause a transformation of at least one nuclide to another.…

Q: The naturally occurring radioactive isotope 232Th does not make good fission fuel, because it has an…

A: The radioisotope, 232Th is given. To find: Z and N for 232Th ?

Q: 2+ A chemist wishing to do an experiment requiring " Ca* (half-life = 4.5 days) needs 9.0 ug of the…

A: Given :- Half life of 47Ca2+ = 4.5 da  Time = t = 48 hour = 2 day  Amount of 47Ca2+ present at time…

Q: A radioactive isotope of vanadium, ⁵³₂₃V, decays by producing a β⁻ particle and gamma rays. The…

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Q: What fraction of the 235U (t1/2=7.0x10^8yr) created when  Earth was formed would remain after…

A: Calculation of decay constant, K: k=0.693t1/2=0.6937.0×108 yr=9.9×10-10 yr-1

Q: Write a nuclear reaction for each step in the formation of 218/84 Po from 238/98 U, which proceeds…

A: The nuclear reaction takes place when 2 nuclei with different energies collide together to produce…

Q: Fuel used in nuclear fission is U-235. In the process, neutron particle is used to split U-235 into…

A: A neutron particle is used to split U-235 into 3 neutron particle, Kr-92 and Ba-141.

Q: Calculate the mass defect of 19  9F Use 18.9984 amu as the actual mass of 19  9F

A: Given, Mass of 919F= 18.9984 amu mass defect = ?

Q: Why is the isotope 36CI radioactive while 35CI and 37Cl are not? Elements with an number of protons…

A: Cl Isotopes of 36Cl is radioactive while 35Cl and 37Cl is not radioactive.

Q: O 210p O 210po O 211po O 190po Which of the unstable nuclides below will not result in beta emission…

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Q: True or False: The ratio of unstable isotopes to stable isotopes is part of absolute-age dating.

A: There are two methods of dating: 1) Relative age dating 2) absolute age dating Relative dating- It…

Q: B// If the energy released by fission of U235 is 0.513×1025. Find the weight of U2352 (Avogadro's…

A: A uranium-235 atom absorbs a neutron and fissions into two new atoms (fission fragments), releasing…

Q: %3D C decays by positron emission. B + e Calculate the energy released or gained in this reaction…

A: Step 1. Calculate Mass defect (∆m) : ∆m = mass of products - mass of reactants  ∆m = (11.00656 amu +…

Q: A) Alpha Decay of U: B) Beta Decay of “Co: C) Positron Emission of "F: D) Electron Capture of Kr: E)…

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Q: The rest mass of a proton is 1.0072713786 u and that of a neutron is 1.0086655042 u. The 127I…

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Q: Beta and positron emission is polyenergetic  true or false

A: Nuclear chemistry can be defined as the branch of chemistry that deals with radioactivity .and…

Q: 238U → 92 → 230Th + He 1. Identify the reactants and products in the above reaction. 2. For each…

A: " Since you have posted a question with multiple sub-parts , we will solve first three sub-parts for…

Q: Positron emission by Co-55 produces an isotope with what atomic number?

A: We have Co-55 , we have to predict the atomic number ,after the positron emission .

Q: Explain why 20Na is more likely to undergo positron emission than beta decay.

A: Given data, 20Na

Q: Questióh What is the daughter nucleus (nuclide) produced when Sr undergoes beta decay by emitting an…

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Q: Write down the nuclidic symbol and percentage abundances of all the nuclides having atomic number 7,…

A: To find: The nuclidic  symbol and percentage abundance of nuclides having atomic number 7, 23, and…

Q: The naturally occurring radioactive isotope 232Th does not make good fission fuel, because it has an…

A: A radioactive reaction involves the collision of a nucleus with some other subatomic particle and…

Q: of neutrons found in: 245BK+5

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Q: Complete the nuclear equation, 201 82 Pb - 201 '83 Bi + ? O 0, ß + neutrino O °, B + neutrino O °-1…

A: A nuclide is the one which contains certain number of protons and neutrons. The process by which the…

Q: positron emission tomograpi hy (FE N+jn→ _+p (occurs in U+n→U(unstable 235 236 92 144 236U Ba+ +2,n…

A: In nuclear reaction, mass number and atomic number is balanced.  1.)

Q: 250 Write an equation for the spontaneous fission of 96 Cm. Assume that the process produces two…

A: there are two type of radioactive decay process nuclear fission and nuclear fusion

Q: Natural uranium consists almost entirely of 238U. To operate a nuclear power reactor, the fuel must…

A: Isotopes are atoms of the element with same atomic number and different atomic masses. So in these…

Q: The carbon isotope 11 6C undergoes b+ (positron) decay. The atomic mass of 11 6C is 11.011433 u. (a)…

A: β+ decay is radioactive decay in which a neutron is formed from a proton along with the emission of…

Q: What type of nuclei is used in PET scan instruments? A) Proton emitters B) Gamma ray emitters C)…

A: PET  scan is  generally used  in diagnosis of internal organ of the body.

Q: 60-Co beta decays with half- life of 5.27 years (1.66 x108 sec) into 60NI, which then promptly emits…

A: a) The activity of a sample is given by A = N × ln2t12 Here, the half-life is given to be = 5.27…

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.