The half-life of 222Rn is 3.82 days. (a) Find the number of 222Rn nuclei necessary to produce a sample with an activity of 0.620 μCi. 222Rn nuclei(b) Suppose the activity of a certain 222Rn sample is 7.20 mCi at a given time. Find the number of half-lives the sample goes through in 40.2 d and the activity at the end of that period. (Enter your answer for the number of half-lives to at least one decimal place.)   half-lives   mCi

Q: Consider the nuclei  11750Sn. Determine its mass defect in kilograms if its atomic mass is 116.992…

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A: a)Radius of the nucleus is given by

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A: 1 Ci=106 μC1 Bq=2.7027×10−11 Ci Converting the sample the physicist ingests to Bq 50…

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A: 3 log reduction means 99.9% reduction of bacteria. Let the initial bacteria present be x. After 3…

Q: Calculate the total binding energy and the binding energy per nucleon for  (a) ⁵⁶Fe , (b) ²³⁸U .

A: In Fe56 no. of protons = 26 no. of neutrons = mass-no. of protons = 56-26=30 Total mass of 30…

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

A: Given data: The half-life of 222Rn = 3.82 days. To Calculate Half-life in second Decay constant…

Q: length and nu

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Q: How much energy is required to separate the typical middle-mass nucleus 120Sn (Z=50)into its…

A: The mass defect or change in mass, Δm=Zmp+A-Zmn-Z Substitute, Δm=50×1.007825 amu+120-501.008665…

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A: a) It is given that initial activity is,  Ao=1×10-6 Ci=3.70×104 Bq

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Q: he half-life of 222Rn is 3.82 days. (a) Convert the half-life to seconds.      Answer: _______…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

Q: Taking into account the recoil (kinetic energy) of the daughter nucleus, calculate the kinetic…

A: Please see the answer below.

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

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A: Given data:    mK90r=89.919524 u  mC148e=147.924395 u mP239u=239.0521634 u mn=1.008664 u

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Q: What beta particles are released by 197982 pb transmute to 197 79 Au?

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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.

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A: The equation for the activity is given by, Substituting the values,

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.