Solve the following problems and show complete solution. A. Half life of Sr90 is 29 years. What fraction of the atom in a sample of Sr 90 would remain in 100 years later. B. A sample of radioactive material was found to be 90%disintedgrated after 50years. What is the half-life material?

Q: Select the isotope that has the greatest stability per nucleon. 23 Na 11 56 Fe 26 84 Kr 36 H

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Q: As part of the solution in PROBLEM # 5, what is the natural logarithm of the number of the parent…

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Q: Krypton-79 has a half-life of 34.50 h. After 138.0 h, 54.25 kg of this radioistope is left. How much…

A: Given, the half-life of Krypton-79 is 34.50 hthe amount of radioisotop left after 138.0 h is 54.25…

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Q: If sample made up of Glunitie 142 with a half life of 7 days contained 93.75% daughter atoms, how…

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Q: help please answer in text form with proper workings and explanation for each and every part and…

A: Step 1: Step 2: Step 3: Step 4:

Q: On

A: Answer is option B

Q: A proton is accelerated to 15.1 MeV per particle. What is this energy in kJ/mol?

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Q: A proton is accelerated to 65.6 MeV per particle. What is this energy in kJ/mol?

A: A proton is accelerated to 65.6 MeV per particle. What is this energy in kJ mol-1 ?

Q: Early workers mistakenly thought neutron beams were g radiation. Why? What evidence led to the…

A: The given statement is, Early workers mistakenly thought neutron beams were g radiation.

Q: 245 Cf+ dn 36° Cm + X - Cf+ {n 98

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Q: 13. Which of the following statements is TRUE? a. Alpha particles have the lowest penetrating power…

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Q: Select the isotope that has the greatest stability per nucleon. A. 56 Fe 26 B. 131 Xe 54 C. 23 Na…

A: Here we have to select the isotope which has greatest stability per nucleon-

Q: Gold-198 is used in the diagnosis of liver problems. If the half-life of Au-198 is 2.69 days: b. If…

A: Half life = 2.69 day Initial amount = 9.21 mg  Time = 72.9 days

Q: A proton is accelerated to 47.3 MeV per particle. What is this energy in kJ/mol?

A: Given : acceleration = 47.3 MeV

Q: What is the atomic mass of Ni? Select one: O a. 28 O b. 30 Oc. 58 O d. 58.69

A: Note: According to our guidelines we are supposed to answer only one question.

Q: Fusion reactions are often called amounts of thermal energy required for the reaction to occur. a.…

A: 3. Thermonuclear reaction, fusion of two light atomic nuclei into a single heavier nucleus by a…

Q: What type of radiation occurs when a negatively charged electron is emitted from a nucleus?

A: ANSWER

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: 9. Radon-222 has a half-life of 2.8 days. How many half-lives will pass after 28 days? O 19 10 15 05

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Q: .How does nuclear fusion generate energy? A.When a heavy nucleus splits, the total mass of the…

A: Nuclear chemistry

Q: For the reaction, 3^7 Li (n)4^8 Be, the bombarding particle is, A. proton B. tritium C. positron D.…

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is…

Q: Thallium-201 is used medically to diagnose heart problems. The half-life of thallium-201 is 72.9…

A: Introduction :  We have to calculate mass remains after 97.7 hours . Half life = 72.9 hours .

Q: Solve the following half-life problems. Show your complete solution. 1. Gold-198 is used in the…

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Q: Half-life of Element X mass How much of the daughter product exists after 2 half-lives? of 60…

A: Answer :-  Amount of daughter element after 2 Half lives = 25%…

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

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Q: A proton is accelerated to 86.2 MeV per particle. What is this energy in kJ/mol?

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A: The penetrating power is the energy required to eject the radiation particles from an atom. When the…

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Q: Which of the following does not describe beta particles? A. Beta particles can be stopped by a sheet…

A: Beta particle (β) is a type of high speed radiation with a negative charge.

Q: All of the following statements are true EXCEPT || A. gamma emission can accompany nuclear decay,…

A: Hi, since you have posted multiple questions we will answer the very first question for you. Kindly…

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

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Q: Predict the likely type of radioactive decay for each isotope below. Explain. a. 24Ne b. 119Sb C.…

A: As per rule we will solve first three sub-parts of the question. Kindly repost other parts as a…

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: For the types of radiation given, which of the following is the correct order of increasing ability…

A: Smaller size the particle greater the penetration

Q: 3 Carbon-14 has a half life of about 5,730 years. If an archeologist examines a bone and finds 6.25%…

A: Given :  Half life of C-14 = 5730 years  % of C-14 = 6.25 %

Q: 26. Four hundred grams of a radioactive substance decays to 50.0 grams. If it has a half-life of…

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Q: Which of the following explains why the material that accretes onto a neutron star or black hole is…

A: Neutron stars are generally made off of numerous neutrons.

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

Q: 1. The half-life of Ga-67 is 77.9 hours. How long will it take Ga-67 to decay and lose 95% of its…

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Q: alues if needed for this question. grams in 1.80 seconds, what is the half-life of magnesium-20?

A: In this question we want to calculate the half life. Half life is a time where Concentration of…

Q: Which one of each pair of nuclides would you expect to have thelonger half-life?a. Cs-149 or Cs-139…

A: The nuclides which have longer-half life has to be given, One can find the stability of the nuclide…

Q: Phosphorus-32 Original amount: 30.0 g Amount left: Total time: 114.5 d Half-life: 14.3 d Number of…

A: We can determine the solution by the following formula : t = 2.303k log NoNk = 0.693thalf Where t =…

Q: 8. The Table below lists information about two common types of nuclear radiations. Fill in the…

A: A matter and energy can be differentiated based upon whether the mentioned particle has mass or…

Q: 4. Which type of radiation – alpha, beta, or gamma: a. Results in the greatest change in atomic…

A: To answer this question, we would first see definition and representation of alpha, beta and gamma…