In a 3×109 -year-old rock that originally contained some 238U , which has a half-life of 4.5×109 years, we expect to find some 238U remaining in it. Why are 226 Ra , 222 Rn , and 210 Po also found in such a rock, even though they have much shorter half-lives (1600 years, 3.8 days, and 138 days, respectively)?

Q: mole of particle A and 0.792 mole of particle B and both particles are accelerated to 5.73 MeV. What…

A: As you have asked multiple questions. So we will answer the 2nd part. If you want any specific…

Q: 238U (t1/2=4.5x109yr) begins a decay series that ulti-mately forms 206Pb. The scene below depicts…

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Q: If 3.0 grams of Strontium-90 in a rock sample remained in 1989, approximately how many grams of…

A: In radioactive decay unstable nuclei decay into stable nuclei with emmison of some electromagnetic…

Q: Use the References to access important values if needed for this question. The radioactive isotope…

A: To find half life.

Q: A laboratory investigation shows that a sample of uranium ore contains 10.88 mg of 238U 92 206…

A: Radioactive decay is the process where the unstable nuclei get converted into stable daughter nuclei…

Q: The carbon from the heartwood of a giant sequoia tree gives 11 ?614 counts per minute per gram of…

A:

Q: A laboratory investigation shows that a sample of uranium ore contains 5.66 mg of 92U and 2.56 mg of…

A: Given data:

Q: A proton is accelerated to 81.1 MeV per particle. What is th energy in kJ/mol?

A:

Q: Assuming a radioactive nuclide with an initial activity of 2.4 x 10^3 pCi, how many half lives would…

A: The decay reaction of any nuclide is a first order reaction. Since we know that the relationship…

Q: 4. Thorium-229 is used in cancer treatment. It has a half-life of 7340 years. a) What type of…

A: Given   The half-life of thorium-229 is 7340 years.   Since we only answer up to 3 sub-parts, we’ll…

Q: The radioactive isotope 1 Pa decays by beta emission. If the mass of a sample of protactinium-234…

A: The question is based on the concept of nuclear chemistry. we have to calculate the half life of the…

Q: 100 grams of an isotope with a half-life of 36.0 hours is present at start. How much time will have…

A: Radioactive decay follows first order kinetics. Given that half life is 36 hours. So the rate…

Q: If we start with 1000 radioactive parent atoms and a half-life of 50 years. How many parent atoms…

A: Given,  Initial concentration = 1000 atoms       t12 = 50 years   To find = concentration after 200…

Q: Choose the appropriate drop-down to complete the paragraph. Gallium-67 has a half life of 78.1 hours…

A: lf life of Galium-67 = 78.1 hours lf life of Radium- 226= 1600 years

Q: What particle is needed to complete the following nuclear equation? 2383NP %3D -1e 239 4Pu 23990Th…

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Q: Enter your answer in the provided box. A rock sample originally contains 3.32 mg of 43°U. How much…

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Q: 5) Naturally occurring rubidium has two main isotopes. a) Which isotope of rubidium is more likely…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: 1) According to your data, what are the approximate half-lives of the elements A, B, C, and D? A: B:…

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

Q: A proton is accelerated to 82.5 MeV per particle. What is this energy in kJ/mol?

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Q: What is the nuclear binding energy per nucleon of potassium-40? Particle Mass (amu) K-40…

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Q: A 450.0-mg sample of technetium-99m was used for a diagnostic test.  If technetium-99m has an…

A: Given - Initial amount=450.0mg Half life=4.8h Time=48h

Q: The half-life of tritium is 12.32 yrs. If 49.1 mg of tritium remains of a sample with an initial…

A:

Q: The half-life of 232Th is 1.4×10 yr. Find the number of disintegrations per hour emitted by 1.0 mol…

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Q: How many neutrons are needed to initiate the fission reaction? 235U + ?on 139 56 Ba +36Kr + 3,n 94…

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Q: The half-life of Ga-67 is about three days. If only 12.5% of the original sample remains, the time…

A: The time at which reactant's amount is left half of the original amount is known as half-life. The…

Q: The half-life of tritium is 12.32 yrs.If 49.1 mg of tritium remains of a sample with an initial mass…

A: The question is based on the concept of chemical kinetics. we have to calculate how much time has…

Q: 8. Calculate the amount of energy released per gram of deuterium (H) reacted in the following fusion…

A: According to the question, we need to calculate the amount of energy released per gram off…

Q: Calculate the change in energy, in kilojoules per mole, for the transmutation of radium from the…

A: Change in energy for a nuclear reaction is cakx using formula  ∆E = ∆m × c2  ∆m is change in mass  c…

Q: The nuclear mass of 48 Ti is 47.9359 amu. Calculate the binding energy per nucleon for 48 Ti. AE per…

A: Given, nuclear mass of 48Ti = 47.9359 amu ( actual mass ) We know, 1 MeV = 1.602 × 10-13 joule Mass…

Q: The items on the right show an incomplete radioactive decay equation. Match the items at the left to…

A: Radioactive decay is the spontaneous process by which an unstable atomic nucleus emits radiation in…

Q: A 100.0g sample of water containing tritium, 3,1H emits 2.89*10^3 beta particles per second. Tritium…

A: To solve this problem, we need to determine the percentage of hydrogen atoms in the water sample…

Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

A:

Q: b- The radioactive nucleus Ra has a half-life of approximately 1.6 103 yr. Given that the Solar…

A: Radioactivity is basically a first-order reaction. A first-order reaction means the rat of the…

Q: Mr. Albedo stumbled upon an unknown material in an abandoned laboratory. He believes that this…

A:

Q: The measured mass of the nucleus of an atom of silver-107 is 106.879289 amu. For this atom,…

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Q: Calcium-48 is used to produce heavy elements. A research facility uses a particle accelerator that…

A: To answer these questions, we need to consider the process of nuclear fusion and the stability of…

Q: The half-life of Cr-51 is 28 days. If a sample had 510. g, how much Cr was there 168 days ago?

A: Radio active decay is an example for first order kinetics  In first order reaction half-life…

Q: A sample of cobalt–60 was labelled as having an activity of 3.25 mCi, but upon inspection, it…

A: Given  initial activity of Co-60 = 3.25 mCi final activity of Co-60 = 1.50 x 107 Bq  half life time…

Q: Rb ? + 37

A: A question based on nuclear chemistry, which is to be accomplished.

Q: Elements with an number of protons form stable isotopes when the number of neutrons is Thus, Cl-35…

A: Elements with an even number of protons form stable isotopes when the number of neutrons is even.…

Q: Radioactive Decay of Carbon-14 100% 75% Amount of carbon- 14 50%- 25%- 12.5% 0. 5730 10,740 16,110…

A: Half life is the time taken for Decomposition of 50% of the the total amount of the substance.

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.