Which of the following materials would make a better shield from radiation? i)  Iron (density = 7.87 g/cm3) ii)  Titanium (density = 4.50 g/cm3) iii)  Tungsten (density = 19.36 g/cm3)

Q: Identify the isotope being described. 1. used to determine damage in heart tissue and detection of…

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Q: Write a chemical equation for each of the following radioactive decay processes:  thorium-232 decay…

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Q: The dosage of technetium-99m for a lung scan is 20. uCi /kg of body mass. How many millicuries of…

A: Given:  Dosage = 20 µCi/kg  Weight of person = 53 kg    To find: Number of millicuries

Q: Question 21 One of the disadvantages of SEM is radiation exposure. What is the source of this…

A: SEM is scanning electron microscopy. It is type of microscope that uses electrons instead of light.

Q: Radiation can be used to__________.     provide electricity     sterilize the surface of meats,…

A: Radiation can be used in all these.

Q: Complete each of the following equations: (a) 73Li+?⟶242He (b) 146C⟶147N+? (c) 2713Al+42He⟶?+10n (d)…

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Q: Which of the following statements are negatives associated with using nuclear energy? I. Nuclear…

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Q: Can you identify the acceptable exposure limits for affected populations in occupational and…

A: Occupational exposure limits (OELs) are defined as the time-weighted average concentration of a…

Q: Which radioactive element if ingested is primarily Incorporated  into bone tissue A. Uranium B.…

A: Uranium has little health hazard till it is not inhaled or ingested in human body.   It is…

Q: The cleanup of threat of toxic nuclear isotopes can be permanently eliminated by simply storing it…

A: Toxic nuclear isotopes cannot be permanently eliminated. This is temporary process.

Q: TRUE OR FALSE 1. The age of fossils can be traced using isotopes C12 and C14 called Carbon dating…

A: Radiocarbon dating is based on the simple principle that all living things absorb carbon from the…

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: 5. Manganese-56 has a half-life of 2.6 hours. How much manganese would have disappeared after 7.8…

A: Given, Half life of Manganese-56 = 2.6 hours Initial amount of manganese-56 = 20 g Amount of…

Q: Fill in the missing symbol in this nuclear chemical equation. 238 234 90 Th + 92 U 00 X ?

A:

Q: Question 13 What is FALSE about the advantages of PET imaging? O It is quantitative as you can…

A: A multiple choice question based on analytical process that is to be accomplished.

Q: This section indicates the exposure limits, engineering controls, and personal protective measures…

A: Section 8: Exposure Controls/Personal Protection.

Q: - calculate the dose in mcg/kg/min.

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: A woman weighs 59.0 kg and is given 720. mg pills of a drug The concentration of drug inside the…

A: Half-life = 3hrweight of women= 59 kgmass of pills = 720mg∴ initial concentration of pill, N∘=…

Q: A brain scan uses the radioisotope oxygen-15. The recommended dosage is 50 mCi. A supply of 250 mCi…

A: Oxygen-15 is one of radioactive isotope of oxygen , use in PET scan of brain. It undergoes positron…

Q: To boil water by placing a pot onto the stove we must increase its temperature to 100°C. It takes…

A: The process of heating water in a pot involves multiple modes of heat transfer which are as follows:…

Q: RA 6969 encompasses nuclear wastes Physical hazard may cause harm without touching

A: Answer : option a Statement 1 :Republic Act 6969 of the Philippines is likewise recognised as "Toxic…

Q: 15. It is due to diffusion. A. spread of fragrance in a room B. spread of radioactive particles…

A: The intermixing of the particles of one substance into another on their own is known as diffusion.

Q: Disintegrate or decay mean that radioactive elements disappear as they emit radiation and are…

A: The given statement is true

Q: A certain drug has a half-life in the body of 2.0 h. Suppose a patient takes one 200. mg pill at…

A:

Q: Which type of radiation—alpha, beta, or gamma—is likely to fog a film that is sensitive to X rays?

A: X-rays can be used to examine most areas of the body. They're mainly used to look at the bones and…

Q: A drug has a half life of 12 hours. How much of the drug will remain in the patient 36 hours after…

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Q: The mercury-201 nuclide radioactively decays by electron capture. Write a balanced nuclear chemical…

A: Given : We have to write equation for electron capture.

Q: Thallium-201 is a radioisotope used in brain scans. If the recommended dose is 3.0 mCimCi and a vial…

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Q: Thallium-201 is a radioactive isotope used in brain scans. If the recommended dose is 3.8 mCi and…

A: Given thallium-201 is a radioactive isotope used in brain scans, we are asked to calculate the…

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.

Q: Please define each around 50 words. Nuclear Fission, Nuclear Fusion, Preparation and uses of Group…

A: Nuclear fission is a term corresponding to nuclear reactions. Nuclear fission is defined as the…

Q: 43. John Wayne Like a lot of other Americans, John Wayne died of cancer. But is there more to this…

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Q: What is the effective dose (in Sv) absorbed by a 75.0 kg worker?

A: Given: Nuclear plant absorbed 426 J of radiation primarily from γ radiation. To Calculate: Effective…

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: The element americium is used in smoke detectors. It is radio active and has a half life of 462…

A: All natural and artificial radioactive decays follows first order kinetics The integrated rate…

Q: Which of the following is not a radioactive element? a. Plutonium b. Thorium C. sulphur d. Uranium

A: The radioactive elements are those which have unstable nuclei and give off atomic radiation to gain…

Q: A substance has a half-live of 5 minutes.  We have 50 grams of substance.  If 60 minutes has passed,…

A: The solution is as follows :

Q: 1. If you turn on the burner on a gas stove under a pan of cold water, energy moves from the burner…

A: This mode of transfer of energy is called conduction because there is direct supply of heat between…

Q: Numerate the most important chemical hazards?

A: Chemical hazards can be defined as a substance that causes harmful effects on human health.

Q: A patient is given a 0.05 of 6 hours. How long will it be until mg dose of e which has a holf-life…

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Q: Which hydrogen isotope is radioactive?

A: Three isotopes of hydrogen are Protium(H11); deuterium(H12) and tritium(H13) Here tritium is radio…

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

A: The activity of the fresh wood = 11C                      (inner side)          = 11 x 3.7 x 1010…

Q: A woman weighs 66.0 kg and is given 850. mg pills of a drug The concentration of drug inside the…

A: Half life period is time after which concentration of any substance become half of the initial…

Q: A certain drug has a half-life in the body of 2.0 h. Suppose a patient takes one 50.0 mg pill at…

A: A drug can be defined as medication which is used to cure and treat diseases.

Q: 4) How many years old is a person who has lived for 1 billion seconds?

A: Given, A person who has lived 1 billion seconds the age of a person is:

Q: 6. Which among the following is best for shielding against gamma radiation? * A. aluminum B.…

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Q: Indicate whether or not all isotopes would be radioactive for each of the following elements. a.…

A: Radioactive decay also known as nuclear decay is the process of the spontaneous breakdown of an…

Q: If a patient takes a drug with a half-life of 20 hours in the body, after how much time will 1/16 of…

A: Given data  half life : t1/2 = 20 hr final drug remain = 1/16 of initial Use the following formula…

Q: Why are food particle preferably packed in aluminum foil?

A: INTRODUCTION: Aluminium foil is a thin sheet of aluminium used to wrap food.

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.