Which of the following would be valid uses of a radioactive tracer? embedding a radioactive plug in a valuable necklace so that its location can be determined using a Geiger counter   adding a stream of radioisotopes to wastewater to examine where pollution goes when it flows into the ocean   placing radioactive sources around a room to trace the location of people as they move through the room   filling a pipeline with a radioactive gas to see if it contains any leaks

Q: A star has a luminosity of 1026 W and the main nuclear fusion reaction of this star is the p-p…

A: p-p chain reactions are those reactions in which four hydrogen nucleus combine together to form one…

Q: If 200. mg of fluorine-18 is shipped at 8:00 A.M., how many milligrams of the radioisotope are still…

A: The term radioactive substances can be defined as the atoms which have the tendency to decay…

Q: How does radiation affect living organisms?

A: Radiation is defined as the particles or waves having high energy. The emission or transmission of…

Q: The diameter of an iridium-191 nuclide is 9.2 femtometers (9.2 x 10-15 m). Using the estimate that…

A: Detail

Q: 60Co -->   60Ni + ____     Alpha emission     Beta emission     Positron emission…

A: Atomic number of Co is 27 and Ni is 28 Hence the reaction taking place is (Assuming the missing…

Q: 128Ba+ ____  -->  128Cs         Alpha emission     Beta emission     Positron emission…

A: The atomic number of Ba is 56 and Cs is 55 Hence the reaction taking place is (assuming the unknown…

Q: Which are classified as ionizing radiation: X rays, alphaparticles, microwaves from a cell phone,…

A: Electromagnetic spectrum involves different radiations from the lowest to the highest frequency…

Q: Which of the following nuclear reactions would always result in a nuclide with an increased proton:…

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Q: Some Radioactive Isotopes Useful in Medical Imaging Mode of Isotope Decay Half-life Use in Medical…

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Q: Investigate the medical uses of radioisotopes

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Q: What are the benefits of using radiation as a medical tool? List three benefits What are the risks…

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

Q: Explain why it is safe to use radioisotopes to diagnose medical problems.

A: To find: Why is is safe to use radioisotopes to diagnose medical problems

Q: Which of the following is not a radiation detector?  cloud chamber barometer scintillation…

A: In this question we have given some instruments and we have to explain that among these instruments…

Q: Radiation is utilized to reduce or eliminate microorganisms and insects from food. What are the…

A: Food irradiation is a technology that uses ionizing radiation on food in order to improve the safety…

Q: During work with a radioactive source, a worker was told that he would receive 45 mrem at a distance…

A: Given: During work with a radioactive source: worker receive 45 mrem at a distance of 7.0 m during…

Q: Energetic gamma rays are emitted when ________, which then are a new source of energy for the…

A: Here i filled the blank space

Q: How many days would it take for one-fourth of the sample to decay? 37.5 days time: Incorrect

A: To calc the time , we first need to check the percent of iridium remaining after one-fourth decay.…

Q: When 7Be undergoes electron capture, what is the daughter nuclide that forms? 4 O 11C 6 O 8B 5 O 3He…

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

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Q: A medical technician is working with the four samples of radionuclides listed in the table below.…

A: The sample with a lower half life will have higher radioactivity and vice versa. To decrease the…

Q: 6. Which fraction of crude oil has the biggest compounds? * Diesel O Kerosene Naptha O Gasoline

A: Answer is given below.

Q: What medical imaging techniques do not use radioactivity?

A: Given information,   Medical imaging techniques that do not use radioactivity

Q: 8. In a paper-making factory, beta radiation is used to check that the paper being produced is the…

A: The simple reason for the same is optimum conditions. We need the one which is suitable and is…

Q: 7. A portion of the radioactive decay series that starts with Th-232 is as follows. For each step,…

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Q: Which of the following isotopes would be the best choice for use with PET?

A: Introduction: PET ( Pistron Emission Tomography ) is a nuclear medicine imaging method , frequently…

Q: electroplating

A: radioisotopes get split into smaller atoms

Q: Why is it important to avoid contaminating a historical sample with modern material when performing…

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Q: A worker in a laboratory unknowingly became exposed to a sample of radio-labeled sodium iodide made…

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Q: What is activity of a 21.5 uCi sample of carbon -14 in becquerels

A: The SI unit for radioactivity is becquerel represented as 'Bq'. It the calculated as disintegration…

Q: Part 2: Fill in the blank to determine the missing reactant or product. Then state if it is alpha or…

A:

Q: medical technician is working with the four samples of radionuclides listed in the table below.…

A: For the four samples of radionuclides listed initially, each sample contains = 18.00…

Q: Assuming the same thickness, which material would you expected to be the most effective shielding…

A: Nuclear chemistry is branch of chemistry in which we deal with nuclear fusion and fission reaction.

Q: A medical technician is working with the four samples of radionuclides listed in the table below.…

A: The radioactive decay is a first order reaction.Hence rate is proportional to concentration of moles…

Q: A medical technician is working with the four samples of radionuclides listed in the table below.…

A: Given Sample 23 umol 1/16

Q: Some Radioactive Isotopes Useful in Medical Imaging Mode of Isotope Decay Half-life Use in Medical…

A:

Q: Part A Po → →Pb+? Express your answer as a nuclear symbol. AEO 4 → DA chemical reaction does not…

A: Alpha decay and beta decay are two types of radioactive decay. Alpha decay occurs when an atomic…

Q: 33. Which indicator could be used to show that a nuclear reaction occurred? An element changes…

A: In a nuclear reaction the nucleus is participates as a result the the nucleus emitted the nuclear…

Q: Which of the following are important for understanding why the C-14 isotope ratio of a life form is…

A: While studying radio carbon dating it is important to know that, cosmic rays interact with…

Q: State why an alpha emitter is not suitable to be a tracer

A: A tracer is a chemical compound in which one or more atoms are replaced by a radioactive nuclide and…

Q: Which of the following statements related to nuclear chemistry is incorrect? According to the…

A: Characteristics of nuclear reacions

Q: How does radioisotopes in medicine relate to the grade 12 unit of Structure and Properties of…

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Q: All hazardous material spills near sink, floor drains, bodies of water need to be reported to…

A: Hazardous materials are very much harmful and dangerous for life and materials. It is split on all…

Q: Write the daughter nucleus product in the following nuclear processes: Beta emission of…

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Q: What is the nuclear symbol for the missing nuclide? ● • Type "/" to create a fraction to get a…

A: Nuclear reaction is a process in which two nuclei, or a nucleus and an external subatomic particle…

Q: Use evidence from the left side to answer the question “Which of these types of radiation might be…

A: Among the given material lead has higher density than the paper and aluminium . Among the given…