A sample of wood from an archaeological excavation is dated by using a mass spectrometer to measure the fraction of 14C atoms. Suppose 100 atoms of 14C are found for every 1.0 * 1015 atoms of 12C in the sample. What is the wood’s age?

Q: Calculate the difference in the binding energy (in MeV) between He (atomic mass = 3.016029 u) and H…

A: Mass of He3 =3.016029 u  Mass of H3 = 3.016049 u  Mass of H1 = 1.007825 u  Mass of neutron =…

Q: What is the reason that 235U and 239Pu are easier to fission than 238U?

A: The number of neutrons in the atom U92235 is calculated by taking the difference of the mass number…

Q: What is the rest energy (in MeV) of an atom with an mass of 6.43 u?

A:

Q: Calculate the energy, in Joules, released in the reaction shown below. AUGUST 2009 H+HHe + 'n…

A: The given reaction is - H12 + H12 → H23e +n01  To find = Energy released during the reaction

Q: What is the minimum energy that is required to break a nucleus of 12C (of mass 11.996 71 u) into…

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Q: Cobalt

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Q: A certain radionuclide is being manufactured in a cyclotron at a constant rate R = 4.15 x 1021h1.It…

A: Rate at which nuclide is manufactured in the cyclotron  R=4.15*1021h-1 The disintegration constant λ…

Q: The energy emitted in the  alpha decay of 239Pu in MeV is

A: The alpha decay of 239Pu is as shown below, 23994P→23592U+42α The mass of the 23994P is…

Q: Calculate the energy released in the β+ decay of 22 Na , the equation for which is given in the…

A:

Q: For the following reaction, what is the energy released, in GJ/mol? (1 GJ = 1E9 J) Use 2.998E8 m/s…

A: According to Einstein relation,  E=∆mc2 Change in mass is given by,  ∆m=3.0221+4.0834-6.1450+0.0087…

Q: Calculate the energy released in the α decay of 238U .

A: Alpha decay process is as follows: U238→T90234h+H24e+Qwhere,Q=energy released during process Formula…

Q: Radioactive isotopes used in cancer therapy have an "expiration date." For example, a widely used…

A: initial activity = 5000 Ci activity which is considered to be too weak for treatment = 3500 Ci Half…

Q: In the reaction "He + °Ben+ 12C how much energy is released or absorbed? The mass of "He is…

A: At first, we will find the mass defect, and then we will find the equivalent energy.

Q: Find the half-life (to the nearest year) of krypton if r = −0.0641. yr

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Q: A sample of 131I, half-life 8.0 days, is registering 100 decays per second. How long will be it…

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Q: Calculate the reaction Q-valueof the following reaction: 7Li + α à n + 10 [The masses of the…

A: Calculate the reaction Q-valueof the following reaction: 7Li + α à n + 10 [The masses of the…

Q: In the following reaction, which type of decay is occurring? 20Sr Y+ -> 39- -

A: A beta minus particle is released

Q: On your birthday, you measure the activity of a sample of 210Bi, which has a half-life of 5.01 days.…

A: Given Half life (T1/2)=5.01 days Initial activity (Ao)=1.000 μCi

Q: Which of the following isotopes would be least likely to undergo positron emission? A. 118Sn D. 96Ru…

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

Q: A nuclear fusion reaction in the Sun converts 4 H nuclei to 1 He-4 nucleus. Each Hydrogen nuclei is…

A: The nuclear fusion reaction can be shown as, 4 H atoms →1 He atom   Given, the mass of the hydrogen…

Q: 3 1 Consider the nuclear reaction H +H →, He + 2, n. The known atomic masses are He: 4.002603 u 2 H:…

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Q: A certain watch’s luminous glow is due to zinc sulfide paint that is energizedby beta particles…

A: Given, a certain watch’s luminous glow is due to zinc sulfide paint that is energized by beta…

Q: A sample of wood from an archaeological excavation is dated by using a mass spectrometer to measure…

A: Given:in the fossil it was seen that for every 1.5×1015 atoms of 12C, there were 125 atoms of…

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: Determine which of the following suggested decays can occur spontaneously: (a) Ca →e* + 19K (b) '6Nd…

A: a)The mass of each nuclei

Q: What is the mass difference in a nuclear reaction if the energy released is 2.98 × 1011 J?

A: We know thatE=(∆m)c2HereE=Energy∆m=Mass differencec=Speed of light

Q: Suppose an archaeologist finds an ancient seashell necklace, and the 14C content of the necklace is…

A: Calculate the decay constant of 14C. k=ln2t1/2=ln25730 yr=1.209×10-4 yr-1 Here, k is the decay…

Q: Consider the α decay 92U143→ 90Th141+2He2. 1. What energy, in megaelectron volts, is released in…

A: Given data: The alpha reaction is U14392→ T90h141+H2e2 The mass of the nuclide m= 231.036298 u

Q: 11. Calculate the energy released in the reaction shown below. Li+ n → He + H Particle Mass (u) Li…

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Q: Given that the mass of a helium nucleus He is 4.001506 u. Find the binding energy of He 2 (Given:…

A: The force by which the nucleons are bound together in a nucleus is greater than those of an…

Q: Because the neutron has no charge, its mass must be found in some way other than by using a mass…

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Q: C has a half life of 5,730 years. How many 6C atoms would you need in order to measure an average of…

A: Here given the half life of 14C is 5730 year. There is an average decay of 10 decay per sec. We have…

Q: 200 MeV is a typical energy released in a fission reaction. To get a sense for the scale of the…

A: The energy to form an electron positron pair is 1.02 MeV.

Q: The theory of nuclear astrophysics is that all the heavy elements like uranium are formed in the…

A: Write the expression for the decay constant of both the elements in terms of their half-lives.

Q: 6. Given the information below, how much energy is emitted in the reaction? 22.9945 mass of Ne Ne →…

A: Correct option (C) 4.38 MeV

Q: A certain radionuclide is being manufactured in a cyclotron at a constant rate R = 8.18 x 1021 h1.It…

A:

Q: Calculate the energy Er, in megaelectronvolts (MeV), released in the following nuclear fission…

A: To solve the question, we will calculate the mass defect, and then we will find the equivalent…

Q: Calculate the energy released in Joules when a deuterium-tritium fusion reaction occurs. Table 1…

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Q: When 59Cu undergoes positron emission, what is the immediate nuclear product? a. 59Ni b. 58Ni c.…

A: In positron emission with atomic number Z the nuclear product which is formed will have atomic…

Q: How much energy can be released in total from 0.895 kg deuterium by the fusion reaction above if the…

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Q: The highest energy alpha particle emitted in the decay of 238U to 234Th is 4196 +-4 keV. From this…

A: Given quantities: Q value of the reaction = 4196 keV Mass of Uranium = 238.02 u Mass of alpha…

Q: What is the disintegration energy (in MeV) of the spontaneous decay: 116Nd → Ce + He -> 58 Knowing…

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Q: The theory of nuclear astrophysics is that all the heavy elements like uranium are formed in the…

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Q: hat is the emergy released in this 8+ nuclear reaction Nb Ze + Se? (The atomic ass of Nb is…

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Nuclear Reactions

Nuclear reactions are processes in which the fundamental characteristics of a nucleus changes. They change into a completely different nucleus. These processes occur naturally in an unstable nucleus. Bombarding an energetic particle can induce nuclear reactions.  In this article, both the naturally occurring nuclear reactions are termed as radioactive decay and the induced nuclear reactions are further categorized as nuclear fission and nuclear fusion.