A large amount of Sr was released during the Cher- nobyl nuclear reactor accident in 1986. The Sr enters the body through the food chain. How long will it take for 90% of the Sr released during the accident to decay? See Appendix B.

Q: For the real or imaginary nucleus of 19276X, find (a) the net electrical charge of the nucleus, (b)…

A: Here given the real or imaginary nucleus of ¹⁹²₇₆X . We have to calculate the net electrical charge…

Q: What is the ratio of the binding energy per nucleon of nitrogen 14N N to helium He nuclei. (.

A: Ratio of binding energy per nucleon of Nitrogen to helium.

Q: Q23. When a deuteron (GH) of mass 2.0141u and negligible kinetic energy is absorbed by a lithium…

A: The change in mass is given by ∆m=mH12+mL36i-2mHe4=2.0141u+6.0155u-24.0026u=0.0244u1.66×10-27 kg1u…

Q: 10 Figure 42-17 shows the curve for the binding energy per nu- cleon AEpen versus mass number A.…

A: Binding energy per nucleon is the average energy required to remove an individual nucleon from a…

Q: It is estimated that the Chernobyl disaster released 6.0 MCi of 137 Cs into the environment.…

A: The activity is given by,

Q: Consider the following nuclear reaction 189F → 188O + 01e + ν and determine the Q value or total…

A: Given: The atomic mass of 189F is 18.0009 u. The atomic mass of 188O is 17.9992 u. The mass of  01e…

Q: Show that, half-life is directly proportional to mean life.

A: To determine: To show that, the half-life is directly proportional to the mean life

Q: What were the two methods used to separate U-235 from U-238 in the Manhattan Project during World…

A: U-235 from U-238 are the two isotopes of element named uranium. Isotopes are the elements with…

Q: Graph of average binding energy per nucleon, MeV (y axis) against nucleon number, A (x axis)

A: The schematic graph of average binding energy per nucleon (in MeV) against nucleon number (A) is…

Q: The greatest binding energy per nucleon occurs near 56Fe and is much less for 238U. Explain this in…

A: Binding energy of the nucleus from semi empirical formula

Q: What is the function of the moderator in a nuclear reactor?

A: To sustain nuclear chain reaction, nuclear reactor must works in its critical state. So, that to…

Q: Assume that the decay rate for Carbon 14 is k=0.00012. If charcoal found in an ancient fire pit…

A:

Q: A) How much mass is left in a piece of animal skin after 17,145 years when a newly made piece of…

A:

Q: What mass of fluorine-18 (F-18) is needed to have an activity of 1 mCi? How long will it take for…

A: It is given that,

Q: The mass defect arises because the sum of masses of the component nucleons is less than that of the…

A:

Q: (a) Natural potassium contains 40K , which has a halflife of 1.277×109 y. What mass of 40K in a…

A:

Q: a) Natural potassium contains 40K , which has a half-life of 1.277×109 years. What mass of 40K in a…

A:

Q: How much ionising radiation is needed to get cancer? Explain how it will give you cancer?

A: Ionising radiation, such as gamma rays, X-rays and radioactive particles can cause cancer by…

Q: (b) Consider the nuclear decay 'Pu → 12 U +a. The half-life for this decay is 24,120 years. Assume…

A: Given data: Half life time for P94239u is, τ12= 24120 years Mass of the original sample is, m= 1 kg=…

Q: What is the mass of 60 Co in a cancer therapy transillumination unit containing 5.00 kCi of 60 Co ?

A: The expression for the mass,

Q: As the mass number of nucleons increases, what happens to the binding energy per nucleon?

A: discuss about the binding energy  with increase in mass number of nucleon.

Q: what is the difference between Q-value of reaction and Q-value of decay (alfa, B)

A:

Q: Two nuclei having the same mass number are known as isobars. (a) Calculate the difference in binding…

A:

Q: What mass of fluorine-18 (F-18) is needed to have an activity of 23 mCi? How long will it take for…

A:

Q: what is the missing in this nuclear equation 24 12mg + 1 0 n -> 23 11na + ?

A: Given- what is the missing in this nuclear equation 24 12mg + 1 0 n -> 23 11na + ?

Q: A rock contains 0.257 mg of Pb-206 for everv milligram of U-238.The half-life for the decay of U-238…

A:

Q: Natural potassium contains ⁴⁰K , which has a half-life of 1.277×10⁹ years. What mass of ⁴⁰K in a…

A:

Q: (a) For the nuclei N N and O, determine the difference in binding energy per nucleon (in MeV). (Let…

A: Mass of proton mp=1.0078uMass of neutron mn=1.0087uMass of nytrogen MN=14.0031uMass of oxygen…

Q: What occurs when a nitrogen nucleus captures an extra neutron?

A: A neutron is captured by the nitrogen nucleus

Q: What mass of fluorine -18. (F-18) is an activity of 10mCi? How long will it take for the activity to…

A: The half-life of F-18 is 109.7 m. The formula for the decay constant is:

Q: A radioactive isotope has decayed to the point that 1/32 of the original content is left. How many…

A: Given data: The ratio of remaining content to original content  = 1/32 Required: Number of…

Q: For the fusion reaction shown below, find the amount of energy (Q) released. (Enter your answer in…

A:

Q: (a) For the nuclei B and C, determine the difference in binding energy per nucleon (in MeV). (Let…

A: To calculate the difference in binding energy per nucleon ( in MeV ) for B511 and C611.

Q: The water that passes through the reactor core of a water-moderated fission reactor does not pass…

A: A nuclear reactor is used in a nuclear power plant. It is a spontaneous and rapid process and also…

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.