A sample of mercury-194 has an activity of 0.250 Ci.  How many milligrams of Hg-194 are present in the sample? Answer: ___ milligrams

Q: About 0.0117% of the 600 mg of potassium in a typi- cal banana is radioactive potassium-40. If 1.00…

A: Given: 1) Mass of potassium in a typical banana is radioactive 0.0117% of the 600 mg of…

Q: have a sample of Co-60. On the sample, it is recorded that the activity of the cobalt was 3.29x103…

A: Given sample is of cobalt-60  Half life of cobalt-60 = T1/2 = 5.27 years  Initial activity = A0 =…

Q: Cobalt-60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 9.7 mg…

A: Given mass of sample = 9.7mg = 0.0097g  Molar mass of Cobalt-60 = 60g/mol  Half life of reaction =…

Q: What is the specific activity (in Ci/g) if 8.8 g of an isotope emits 4.13 × 10° B¯ particles per…

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Q: Question 1 [AC 2.2] A sample of pitchblende (uranium oxide) will also contain all the decay…

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

Q: Give good hand written explanation ASAP Four samples of radionuclides listed in the table below.…

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Q: 16. Common activity levels of Radon-222 are in the range of 1 picocurie/liter (pCi/L) at room…

A: According to the law of radioactive decay, the number of nuclei undergoing decay per unit of time is…

Q: Question 30 A certain radioactive isotope has a half life of 17.9 years. What percent of a sample…

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Q: When a curium-242 nucleus is struck with an alpha particle, a neutron is produced along with a new…

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Q: If a nuclide has n/p > 1, it emits * beta positron gamma alpha

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

Q: A 0.20 mL sample a saline solution containing 59Fe is injected into the animal. Before the injection…

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Q: Cobalt-60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 2.8 mg…

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Q: d. Determine the pH. What is the activity in kilocuries, of a 0.75-gram sample of krypton-85? The…

A: Given-> Weight (w) = 0.75 gm Half life (t1/2) = 10.73 years = 10.73 × 3.15 × 107 sec t1/2 = 33.8…

Q: Hydrogen-3 is radioactive and has a half life of 12.3 years. Calculate the activity of a 3.4 mg…

A: The formula used to calculate activity. A is activity which is used to determine the rate of decay…

Q: d. nuclear fission of Uranium-235 to form Caesium-135, four neutrons, and an unknown nuclide e.…

A: We have to write the radioactive decay equations of the given decay d. nuclear fission of…

Q: III.  If a sample of  Na-24 ( T1/2  =  15h) originally contains 48 g, a)  how many hours will be…

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Q: Gold-198 has a half-life of 2.69 d. What is the activity (in curies) of a 0.760-mg sample? Activity…

A: Given- Half life = 2.69 d Mass of sample = 0.760 mg Gold-198   To find- Activity in curies…

Q: Find the activity of a sample containing 1.51 x 10-6 g of  6027(Co) (T1/2 = 5.27 years).

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Q: Please answer ALL questions, if not, then please DO NOT answer, thank you The nuclear reaction in…

A: Since you have posted a question with multiple sub-parts,we will solve first three sub-parts for…

Q: 10 of 10 Review I Constants I Periodic Table Part A Determine whether or not each of the following…

A: Nucleus which are stable do not undergo any type of radioactive decay. An only unstable isotope of…

Q: When the nuclide strontium-80 decays by electron capture: The name of the product nuclide is The…

A: Given : Strontium - 80 To Find : Name of product nuclide Symbol of product nuclide Solution :…

Q: Tin-129 is radioactive and has a half life of 2.23 minutes. Calculate the activity of a 1.2 mg…

A: Given  Half-life of Tin-129 = 2.23 minutes = 2.23 x 60 = 133.8 seconds Mass of the sample = 1.2 mg =…

Q: A vial contains radioactive iodine-131 with an activity of 2.0 mCi/mL. If a thyroid test requires…

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Q: The hydride of an unstable nuclide of a Group IIA metal, MH2(s), decays by alpha emission. A…

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Q: You have a sample of Co-60. On the sample, it is recorded that the activity of the cobalt was…

A: The solution is given below -

Q: What is the activity (in Bq) of a sample of Cs-137 if 81.6 years ago it was recorded to have an…

A: Time = t = 81.6 years Initial activity = A0 = 7536.7 Bq  Final activity = A = ? Bq  Every…

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

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Q: You have a sample of Co-60. On the sample, it is recorded that the activity of the cobalt was…

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Q: The intensity of a radioactive source at 1 foot is 500 mCi; at what is the intensity at 3 meters?…

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Q: What is the radioactivity of the sample of sodium-24 after 30 hh? Express the activity to two…

A: Given that  We have sample of sodium-24 We have to calculate radioactivity of thie sample after 30…

Q: 3 attempts left Check my work Click in the answer box to activate the palette. Complete the…

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Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. How…

A: A numerical problem based on nuclear reactions that is to be accomplished.

Q: Conditions Column I CHOICES Column II Activity of 1. A sample of Sr-90 has Activity of a half-life…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: What is the activity (in Bq) of a sample of Cs-137 if 31.6 years ago it was recorded to have an…

A: Given: The initial activity of Cs-137 = 9932.8 Bq And the time passed = 31.6 years. The half-life of…

Q: Cobalt-60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 3.2 mg…

A: Given : We have to calculate activity in curies and Bq.

Q: 220F + 216 At 16N - B+ "0 -1 87 85 What is the relationship between the total mass of the reactants…

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Q: What is the activity, in curies, of a source that has 1.3 × 10° disintegrations per second? (1 Ci =…

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Q: Cobalt-60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 6.1 mg…

A: SOLUTION: Step 1: Half-life of Co-6o is t1/2 = 5.26 years 5.26× 365×24×60×60 = 16.59 ×107 sec.

Q: Plutonium-239 is used as the energy source for heart pacemaker and space probes. It decays by alpha…

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Q: What is the radioactivity of the sample of sodium-24 after one half-life? Express the activity to…

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Q: The question is: The activity of Arsenic-76 after 157.8 hrs is 120.2 micro milicuries. What was the…

A: The activity depends on the no of atom present in the sample .

Q: Plutonium-239 is used as the energy source for heart pacemakers and space probes. It decays by alpha…

A: The reactions involving formation of new nucleus with emission of some radiation along with it from…

Q: Gold-198 has a half-life of 2.7 days. How much of a 953.1 mg gold-198 sample will remain after 13.5…

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Q: Question 6 Aluminium-26, Al, is an unstable proton-rich nucleus and decays into the stable nuclide…

A: The correct answer is given below

Q: • Part A How long will it take for a 0240-mol sample of radium to decay to 3.00 x 10 AE ? 91.2 days…

A: Half life of Radium-223 = 11.4 days No = 0.240 mol N = 3 x 10-2 mol

Q: activity

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Q: A sample of cesium-137 has an activity of 8.00 mCi.  How many micrograms of Cs-137 are present in…

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Q: When writing the balanced nuclear equation for the bombardment of nickel-58 by proton, H (mass and…

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Q: How many alpha particles were emitted by the sample during the time of the workers exposure?

A: We have to Calculate the workers exposure in millirems.

Q: Column A Column B 21283 Bi A. oy В. 14,С C. 20881 TI D. He E. 9537RB I. + 2He A. Alpha decay B. Beta…

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