A purified sample of Mo-99 contains 370 million Bq. a. What mass does this represent if the half-life of Mo-99 is 66 hours? b. What will be the activity of its decay product, Tc-99m in 10 hours if the Tc-99m has a half-life of 6 hours?

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A: The objective of the question is to calculate the initial number of Cesium nuclei, the number of…

Q: A rock recovered from far underground is found to contain 0.88 mg of 238 U, 0.15 mg of 206Pb, and…

A: Given that, A rock found underground contains: amount of U238=0.88 mgamount of P206b=0.15 mgamount…

Q: The decay constant of 235U is 9.8×10^−10 y^−1 . How many 235U atoms will remain in a 1.0 µg sample…

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Q: radioactive

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Q: Consider the nuclei Sn with an atomic number of 50 and mass number is 118 . Determine its mass…

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Q: The half-life of 131I is 8.04 days. c) Convert 0.550 ?Ci to the SI unit the becquerel. (d) Find…

A: c) one curie is 3.7 x 1010Bq converting 0.05 micro curie we get, 0.05 μCi = 0.05 x 10-6 x 3.7 x…

Q: The graph below shows the decay of a sample of 14C that initially contained No atoms. Decay Plot No…

A: Half-life is the time taken to disintegrate half of the initial concentration.

Q: MASS OF A PROTON: 1.007825 U; MASS OF A NEUTRON: 1.008665 U 6. An oxygen isotope, 0-16, 160, has a…

A: *** Since the given two questions are not connected to each other, so according to the Bartleby…

Q: X 26. MeV) for 'Be, for which the atomic mass is 9.01219 amu. Particle masses in amu are: proton =…

A: Given a Be nuclei with atomic mass= 9.01219 amu                                 mass of proton=…

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Q: a) Write a balanced nuclear reaction for the alpha decay of 222Rn. b) The half-life of 222Rn is…

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Q: The half-life of 222Rn is 3.82 days. (a) Find the number of 222Rn nuclei necessary to produce a…

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Q: 26 amu. what is its binding energy per nucleon? (6) For the nuclear reaction 14 4. 17 He H.…

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Q: The air in some caves includes a significant amount of radon gas, which can lead to lung cancer if…

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Q: A certain isotope has a half-life of 9.82 h. What is its decay constant in s-1?

A: Given, The half-life of an isotope, t12 = 9.82 hr

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Q: 3065Zn decays via ββ+ and EC (electron capture).  Estimate the half-life of the fully ionized Zinc…

A: Zn-65 disintegrates by an electron capture to the 115keV excited level and by electron capture and…

Q: A freshly prepared sample of a certain radioactive isotope has an activity of 12 mCi, Alter 9.6…

A: Given data, Activity of the fresh sample = 12 mCi Activity of the sample after 9.6 minutes = 6 mCi

Q: What is the nuclear binding energy per nucleon of a Cl atom? (c = 2.998 x 10° m/s 1 amu = 1.66054 x…

A: Mass defect is given as, Δm=Zmp+(A-Z)mn-mC1735l=17×1.00728+18×1.00867-34.968852=0.308995…

Q: Cadmium-101 is unstable and decays according to the reaction 101Cd→ life of 1.4 minutes. Starting…

A: Given Cadmium-101 is unstable and decays according to the reaction 101Cd → 101 Ag + et + ve with a…

Q: The half-life of a radiotracer is 3 hr. (i) Determine the decay constant of the radiotracer, (ii)…

A: Given, half life of radio tracker is, t12= 3hr i) So decay constant is,  λ = ln2t12=ln23hr=0.23 hr-1…

Q: Suppose a radioactive material, UPinium, was found under the chemistry building in 2000 (year). In…

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Q: The half-life of tritium is 12yr. If the TFTR fusion reactor contains 50 m³ of tritium at a 3…

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Q: 1. Compute the binding energy of the 'Li nucleus; the experimentally determined mass of 'Li is…

A: Disclaimer: “Since you have asked multiple question, we will solve the first question for you. If…

Q: The half-life of 222Rn is 3.82 days. (a) Convert the half-life to seconds. 330048 (b) Calculate the…

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Q: A radioisotope has a half-life of 5.00min and an initial decay rate of 8000 Bq. (1.) What will be…

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Q: When 2041Ca ( Atomic Mass , 40.962278 u ) decays by electron capture, the disintegration energy is…

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Q: 90% of No radioactive atoms decay in one hour. What is the half-live? What is the decay constant…

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Q: Please make sure you are sufficiently precise in your answers that the BE per nucleon can be…

A: given atomic mass = 67.9248476 u  A = 68

Q: P239u is a nuclear waste byproduct with a half-life of 24,000 y. What fraction of P239u present…

A: The formula for remaining nuclei in terms of half life  N=N012tt1/2

Q: A radioactive substance initially contains 20000 thorium Th230 isotype. How many of this radioactive…

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Q: If you start at t = 0 a decay rate of r = 10,000 Cs -137 decays per second, how many decays per…

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Q: The disintegration constant of Ra-226 is 4.3 × 10–4 disintegration per year. Calculate the number of…

A: Given values: Disintegration constant, λ=4.3×10-4 disintegration/year Activity, A=3 kBq

Q: A nuclei has a half-life of 2.80 days. If 122 mCi were prepared but had a delay of 8.0 days. How…

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Q: In a nuclear reactor accident, the 137Cs (?1/2 = 30.2 years) nuclide is among the most problematic…

A: Given : Description of a nuclear reactor using 137Cs.

Q: (d) An a particle is confined in a 'Dy nucleus. Assuming the speed of the a particle is…

A: Uncertainty principle states that it is impossible to measure distance and momentum of a particle…

Q: The half-life of 60?? is 5.27 years. The activity of a 60?? is 3.50 × 109 Bq. What is the mass of…

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Q: The half-life of 43100Tc, a ß- emitter, is 15.8 s. a). How many atoms of 43100Tc are present in a…

A: Half life of decay = 15.8 Activity of sample = 0.2×10-6 = 3.7×1010 ×0.2×10-6 = 7400Bq

Q: The half-life of 27Mg is 9.50 min. initially there were 3.70× 1012 27Mg nuclei present. How many…

A: Given: The half-life of 27Mg t1/2 = 9.50 min At t=0, the number of nuclei of 27Mg, N0 = 3.70× 1012…

Q: The half life for the decay of carbon-14 is 5.73* 10^3 years. Suppose the activity due to the…

A: The half life for the decay of carbon-14 is 5.73* 10^3 years.  A tiny sample of an artifact made of…

Q: gram of caesuim (55 Cs) decays by B-emission with a half life of 30 years. (a) Name the resulting…

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Q: You are training for an upcoming Physics Olympics competition. Your coach gives you the following…

A: In the question it is given that the mass of the indium( 115In) is m=94.1 gInitial activity of the…

Q: a) What is the decay constant of fluorine-17 if its half-life is known to be 66.0 s? λ = b) How…

A: Given value--- Half life time of F -17 (t 1/2) = 66 sec. We have to find--- What is the decay…