What mass of fluorine-18 (F-18) is needed to have an activity of 23 mCi? How long will it take for the activity to decrease to 0.15 mCi?

Q: Francium -223 has a half- life of 21.80min. how many nuclei will be present 1hr and 49min later?

A:

Q: The relative atomic mass of isotope iron-56 (5626Fe) is 55.93494 u. If the nuclear binding energy…

A:

Q: A sample containing I-131 has an activity of 6.40 × 108 Bq. How many days later will the sample have…

A:

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: Calculate the binding energy per nucleon (four significant figures) for the reaction below, 223, Ra…

A: The atomic mass of Ra88223 = 223.01850 u The atomic mass of P82209b = 208.98107 u The atomic mass of…

Q: Which of the following decays is a beta-minus decay?

A:

Q: Bismuth-210 has a half-life of 5.01 days. The activity of a bismuth-210 sample at the start is 100…

A: Write the expression for the remaining quantity. Here, N0 represents the initial activity, t…

Q: A certain sample has 6.4 x 10^7 particles and a half life of 3.5s. Compute the   a) decay constant…

A: initial sample, No = 6.4 x 107  Half life, T = 3.5 s

Q: the decay constant or the beta decay of ^99 43Tc was found to be equal to 1.0x10-13/s. What is the…

A:

Q: hat m

A: Given    Number of Gamma rays over a period of 1 day (n)=1.16×1011…

Q: The peak of the graph of nuclear binding energy per nucleon occurs near 56Fe, which is why iron is…

A:

Q: The atomic mass of O° is 16.000000 amu. Calculate the binding energy of o16 in MeV per nucleon.…

A:

Q: Deuterium, H, undergoes fusion according to the following reaction 担+担→江+X The following data are…

A: Given Data: B.E./nucleon, B.E./nucleon,   Reaction:

Q: The activity due to 14C of a sample has a specific activity of 10.41 d/min.g. The same mass of a…

A: We know from the radioactive decay formula, t=-T120.693lnAA0 Where T12 is the half-life of the…

Q: What is the binding energy per nucleon of neon-22 (Z = 10) given that it has a mass defect of…

A:

Q: ^Zn isotope is 63.927958 amu. What is th

A:

Q: A sample of radioisotope has a decay constant of 9.978x107 s1 and prepared with an initial activity…

A:

Q: What is the binding energy per nucleon of an alpha particle? The nuclear mass of an alpha particle…

A:

Q: 9. Calculate the binding energy per nucleon (in units of MeV) for Be, for which the atomic mass is…

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 nuclear binding energy of Au-197 is found to be 1576 MeV and the binding energy per nucleon is 8…

A:

Q: A 5000-Ci ⁶⁰Co source used for cancer therapy is considered too weak to be useful when its activity…

A: Basic Details The ratio of the activity is an exponential function of decay activity and the time…

Q: the mass excess of an alpha particle greater than or less than the particle’s total binding energy?

A:

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

A: From the question statement. The nuclear reaction is: Now using the mass-energy equivalence…

Q: The binding energy per nucleon of Li-7 and He-4 nuclei are 5.60 MeV and 7.06MeV respectively. In the…

A: The binding energy per nucleon is define as the binding energy of the nucleus divide by the number…

Q: How many calendar years (= exactly 365 days) can a 5.75 W LED lamp light up with 0.853 kg deuterium…

A: Given The amount of deuterium m = 0.853 kg Energy from one deuterium E = 0.823 MeV Power of the LED…

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: The atomic mass of iron, Fe, is 55.9349 u and the mass of Hydrogen, mu =1.007825 u and the mass of…

A: Number of neutrons in .

Q: Show that the energy released when three alpha particles fuse to form 12C is 7.27 MeV. The atomic…

A: The equation to determine Q is,

Q: The rest mass of a proton is 1.0072764666 u and that of a neutron is 1.0086649158 u. The "He nucleus…

A:

Q: You have a 5.2 mol pure sample of an unknown material. After 1.2 h, you discover that 56% has…

A:

Q: Calculate the binding energy per nucleon of 4He , the alpha particle.

A: The total binding energy is  B.E=∆mc2 where ∆m is the mass defect and c is the speed of light.  The…

Q: 46. Old stars obtain part of their energy by the fusion of three alpha particles to form a 1?C…

A: Given, the fact that three alpha particles fuse to form a carbon nucleus. We know,  m(4He2) =…

Q: The half-life of 18F, which is utilised in medical imaging, is 110 minutes. After 300 minutes, what…

A:

Q: If the atomic mass of Sodium-18 is 18.02597 u, what is the binding energy?

A: Please note : As per answering guideliens I can answer the first question only. Since,,this is not a…

Q: What mass of 24Na produces the needed 5.0-mCi activity, given its half-life is 15.0 h?

A: The formula for the half-life is given by, Here, λ represents the decay constant.

Q: A tree falls in a forest. How many years must pass before the 14C activity in 1.00 g of the tree’s…

A: The mass of carbon,

Q: A radioactive material has an activity of 250mCi and has a half-life of 12 hours. At 1.95mCi…

A:

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: The half-life of 30P is 2.50 minutes. If a sample of 30P has 1.60 x 1010 nuclei present initially,…

A:

Q: Find the average binding energy per nucleon of Rb. Select one: O 8.70 MeV/nucleon O 8.07 MeV/nucleon…

A: Rb8537

Q: A beta particle is emitted when carbon-14 transforms in to a nitrogen-14 nucleus. The atomic mass…

A: Atomic mass of Carbon-14 MC=14.003242 u and atomic mass of Nitrogen-14 MN=14.003074 u. The reaction…

Q: The isotope 99Tc*, which has a half-life of 6.0 h, is used in medical diagnostic procedures such as…

A:

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.