Question A radioactive source has a half-life of 80 s. How long will it take for 7/8 of the source to decay?
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A: Given data: Decay rate, dNdt=5.30×1011Bq Nuclei, N = 2.50 ×1015
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A: Beta decay
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A: Just replace the values .... An its done
Q: Which expression correctly describes the radioactive decay of a substance whose half-life is T?
A: Radioactive decay is given by , Nt = N0e-λt And rate constant λ = ln2t1/2 = ln2T
Q: Tritium has a half-life of 12.5 y against beta decay. Determine fraction of a sample which will…
A: (1) We have given Th=12.5 years Here Th= half life We know that NNo=12tTh NNo=122512.5=122=14 N=No/4…
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A: In the given question , We have to determine the values of given parts.
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Q: Bismuth, 214Bi decays by alpha decay with a half-life of 19.7 minutes. What is its decay constant?…
A: Given:Bismuth, 214Bi decays by alpha decayHalf-life,t1/2= 19.7 minutes.Find its decay constant.Now,…
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Q: (a) The diagram shows the decay curve for a radioactive isotope that emits only B-particles. 400…
A: Hello. Since your question has multiple parts, we will solve the first part for you. If you want any…
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Q: The half-life of a radioactive isotope is known to be exactly 1 h. a) What fraction of a sample…
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Q: Determine the half-life (in s) of a radioactive sample that has a decay rate of 3.30 ✕ 1011 Bq when…
A: Given. N = 1.7*10¹⁵ dN/dt = 3.3*10¹¹ Formula used N(t) = N⁰*0.5t/T Where T is half life
Q: 10. The radioactive isotope (82Sr) has a half-life of 25.4 days. A sample containing this isotope…
A: Given, The half-life of radioactive elements is 25.4 days The initial activity, R=4.50×108 Bq
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A: Alpha Decay Alpha particle contains two protons and two neutrons, after an alpha emission the parent…
Q: 235U is radioactive, with a long half-life of 704 million years. The decay products of a 235U…
A: 235U92 has the half-life of 704 million years. But decay products of 235U92 have half-lives of a few…
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