(A). Sodium-24 has a decay constant of 4.63 x 10-2 h-1. What is its half life? (B) The half life of radon-222 is 3.823 days. What is its decay constant?

Q: Question attached

A: Given:-               The first order reaction formula is: Half life T12 = 13.27 hours…

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A: Given data: The half-life of iodine-131 = 8.1 days The initial amount of the sample= 10 μg

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A: Welcome to bartleby ! Introduction : We have to calculate activity of sample

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Q: The isotope 208Tl undergoes β decay with a half-life of 3.1 min.(a) What isotope is produced by the…

A: isotope is produced by the decay has to be determined The time taken for 99.0% of a sample of pure…

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A:

Q: Radium 223 decays with a half life of 11.4 days. How long will it take for a 0.240mol sample of…

A: Half life of radioactive elements is given by    t1/2 =0.693λ      λ = disintegration constant.…

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Q: 3.8. The half-life of 109Tc, a ß- emitter, is 15.8 s. a). How many atoms of 10Tc are present in a…

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Q: How many hours until the isotope decays to 1.56 x 10-3 mg?

A:

Q: The half life of Radium-226 is 1590 years. If a sample contains 500 mg, how many mg will remain…

A: given :-  initial amount of sample = 500 mg  half life = 1590 years  To calculate :-  amount of…

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A: Radioactive decay follows first order kinetics.

Q: 3) 120g of Chromium-48 decays. After 6 half-lives, how much of the original nuclei would remain?

A: Given,  Initial amount of Chromium - 48 is 120g. After 6 half lives the original nuclei would remain…

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Q: The half-life of protactinium-231 is 3.25 x 104 years. How long will it take for 43.4 grams of…

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Q: What other isotope besides tellurium-137 is produced by nuclear fission of uranium-235?

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A: 521H1 + 82 1n0 --->

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A: Welcome to bartleby !  Introduction :  We have to calculate percentage of bismuth lost . Given :…

Q: What is the binding energy in kJ/mol La for lanthanum-139? _______kJ/mol The required masses…

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A:

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Q: Iodine-131 is an important radioisotope of iodine that has a radioactive decay half-life and is…

A: Iodine-131 is an important radioisotope of iodine that has a radioactive decay half-life and is…

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A: Dear student I have given answer to your question in the image format.

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A: Given data, t1/2 of P239u = 24,000 yTime (t) = 1000 years To calculate the fraction of the 239Pu…

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Q: The half-life of 199Tc, a ߯ emitter, is 15.8 s. (a) How many atoms of 199Tc are present in a sample…

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Q: Co-60 is used extensively in radiotherapy as a source of y - rays. Its half-life is 5.27 years. a)…

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A: Applying the concept of radioactive decay which first-order reaction. t1/2= 0.693/k Given: t1/2=2.5…

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A: Mass at starting (t=0) = 56 grams Mass after 6 min = (56-12) g                                = 44 g…

Q: Iodine-131 is an important radioisotope of iodine that has a radioactive decay half-life and is…

A: Radioactive decay follows first order rate law, we can mathematically expressed it as At = Ao…

Q: what is the half life of an isotope that decays to 25% of its original activity in 68.9 hours?

A: For a first order reaction, rate constant can be calculated as

Q: Radium 223 decays with a half life of 11.4 days. How long will it take for a 0.240mol sample of…

A: Half-life of Ra-223 = 11.4days Mass of Ra-223 = number of moles of Ra-223 × Molar mass of Ra-223…

Q: Krypton-87 has  a rate constant of 1.5 * 10-4 s-1. What is the activity of a 2.00 mg sample?

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Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.