Discuss the Calculations involving Radioactive Decay and Time?
Q: How can the decay half-life of a radioactive material be changed? (if can)
A: The decay half-life of a radioactive material is an intrinsic property determined by the stability…
Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…
A: Given: Mo=200 gM=23.0 gt=1 year = 365 days
Q: Suppose that you start with 3.65 g of a pure radioactive substance and determine 19.6 h later that…
A:
Q: Initially 100 milligrams of a radioactive substance was present. After 6 hours the mass had…
A: Given,Initial mass of the substance, m = 100 mgafter 6 hour mass of the substance decreases by 3%
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: 226 Ra 88 222 Rn + X 86
A: In all nuclear reaction mass number (mass) as well as atomic number (charge) remains conserved
Q: A 2 g sample of radioactive iodine 13I has a half-life of 8 days. (i) (ii) (iii) Calculate the decay…
A: formula of decay constant, λ(s-1) = 0.693/λ = 0.693/692928 = 1 * 10-6 s-1 initial no. of atoms in 2…
Q: If the mass of a radioactive sample is doubled, do (a) the activity of the sample and (b) the…
A: The expression for the activity is, As radioactivity and mass of sample is directly proportional to…
Q: From the equation expressing the law of radioactive decay, derive the following useful expressions…
A: Given: The time interval is Δt. Initially the number of atoms is R. After time Δt the number of…
Q: Fission reactions occur only for nuclei with large nucleon numbers, while exoergic fusion reactions…
A: The ratio of the neutron and proton for stable nuclides or light nuclides is: NZ=1 Here, N…
Q: The decay constant of a radioactive source is 752 per year. Then its half- life equals: *
A: Step:1 The Time taken for a radioactive atom to disintegrate to half of its original…
Q: radioactive
A: Given: The remaining sample = 0.004 of the original value
Q: How do you figure nuclear equation for decay for 210 Pb 82 giving off beta particles?
A: given: P82210b giving off beta particle
Q: After 2 days, 10 grams of a radioactive substance s present. Three days later, 5 grams is present.…
A: GivenAfter 2 days , Radiaoactive substance (A)=10 gThree Day later , Radiaoactive substance (A)=5…
Q: Which will leak more neutrons, two separate pieces of uranium or the same pieces stuck together?
A: The uranium atom give neutrons during fission.
Q: The half-life for the a decay of uranium 2U is 4.47 x 10° yr. Determine the age (in years) of a rock…
A:
Q: Some nuclides are easier to make fission than others. What is the reason behind it?
A: The term nuclear fission, it is the partition of the heavy atomic nucleus, like as of Uranium or…
Q: Consider two heavy nuclei X and Y having similar mass numbers. If X has the higher binding energy,…
A: Binding energy is energy required to break the nucleus into its constituent nucleons.
Q: If it is known that 87% of an initial radioactive sample remains after 3 days, what is the decay…
A: Given: The amount of radioactive decay is 87% of the initial amount. The time is 3 days.
Q: Measurements on a certain isotope tell you that the decay rate decreases from 8318 decays/min to…
A: Decay rate of any nuclide at any time is directly proportional to the number of active nuclides at…
Q: I-135 is a fission product that decays into Xe-135 in a reactor during operation. Write the Q value…
A: Given: I-135 decaying into Xe-135. Initial count of I-135 atoms = 10,000 Time = 48 hours
Q: What fraction f1 of a radioactive sample will be left after 3 half‑lives? f1 = ? What fraction f2…
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Q: Give some applications of radioactive decay.
A: Radioactive decay has many useful applications. In medicine, for instance, cobalt-60 is extensively…
Q: Why is the number of neutrons greater than the number of protons in stable nuclei having A greater…
A: The intensity of nuclear charge increases with the increase in the number of protons. This happens…
Q: Explain Gamma decay?
A: A Parent nucleus decays to its daughter nucleus so as to gain stability. The main reason behind the…
Q: Does the number of radioactive nuclei in a sample decrease to exactly half its original value in one…
A: The number of nuclei at a given instant of time can be given as We know,
Q: You measure the decay rate of a radioactive sample to be 4.225e11 Bq. After 139 s, the decay rate is…
A: An unstable nuclei decays by emitting out radiations. The decay activity of radioactive nuclei takes…
Q: What fraction f1 of a radioactive sample will be left after 6 half‑lives? What fraction f2 of a…
A: To determine: 1) fraction f1 of a radioactive sample will be left after 6 half‑lives 2) fraction f2…
Q: Explain the all decay modes for radioactive nuclei.
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Discuss the Calculations involving Radioactive Decay and Time?
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