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Q: Some Radioactive Isotopes Useful in Medical Imaging Mode of hotope Decay Half e Uhe in Medcal aging…

A: 1) The isotope given is mercury-197 with the isotopic symbol 19780Hg.

Q: A person is exposed for 3 days to identical amounts of twodifferent nuclides that emit positrons of…

A: Given information: Half life for nuclide A = 18.5 days Half life for nuclide B = 255 days Also, it…

Q: A patient receives 9.0 ng of a radioisotope with a halflife of 12 h. How much will remain in the…

A: Radioactive elements are those which undergoes the spontaneous reactions (may be fusion or fission)…

Q: Why is radiation therapy an effective treatment for certaintypes of cancer?

A: Radiation therapy is an effective treatment for certain types of cancer.

Q: 16. Bismuth - 210 is an alpha emitter. Write an equation for this nuclear reaction and identify the…

A: The given species is Bismuth-210.

Q: A 75-kg man has a dose of 32.8 rad of radiation. How muchenergy is absorbed by his body? Compare…

A: 1 rad indicates that 0.01 joule of radiation is absorbed by per kilogram of the body. Hence, the…

Q: (b) What mass (in g) of 24Na produces 7.0 mci activity, given its half-life is 15.0 h? Additional…

A:

Q: A patient must be administered a 28-mCi dose of technetium-99m, which is supplied in a vial…

A: Given,

Q: 18. What is the decay constant (in Ci/g) for a 5.25g sample of uranium-238 if it emits 1.25E6…

A: Rate of disintegration or the decay process follows the 1st order kinetics. Let us discuss the…

Q: 3.) Which of the following statements is TRUE about nuclear fusion in stars? XOY. Fusion of light…

A: Binding energy increases with increasing mass. Iron group isotopes are most stable so they require…

Q: Ra decays by the emission of B partides. The half-ife for the decay is 6.67 years. a. Write the…

A: Given : 22888Ra undergoes beta particles emission decay. And half life for decay = 6.67 years.

Q: /hich of the following describe(s) the following reaction? hoose all that apply. U + on Sr + 130xe +…

A:

Q: What series of decays will transform 173Ir into 169W? O two electron captures and a positron…

A: The given Question is from nuclear Chemistry ,so to solve it we should know the atomic number of…

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: A wooden artifact from a Chinese temple has a 14C activityof 38.0 counts per minute as compared with…

A: Given, The activity of carbon of the wooden artifact from a chinese temple is Nt = 38.0 counts per…

Q: a. Explain what is wrong With the given nuclear equation and write the correct equation. Caution: Do…

A: (a) The given reaction is, U92236→3890Sr+54144Xe+01n According to the law of conservation of atomic…

Q: What isotope is used for radioactive dating of previously lived entity ?

A: Isotopes are the species which have same atomic number but different mass number. These are the…

Q: billion years after he creetion had he amount of raakletior y, ke om uranium decaypd ne he How…

A:

Q: A certain radioactive element undergoes a sequence of four radioactive decay steps, in the order…

A: Given information,

Q: A radioactive waste contains 2 curies (Ci) of 60CO per liter and 2 mCi of 45 Ca per liter. The waste…

A: Given that:                Amount of C60o per litre is 2 Ci                Amount of C45a per litre…

Q: A 1.50-L gas sample at 745 mm Hg and 25.0 °C contains 3.55%radon-220 by volume. Radon-220 is an…

A: The rate of the reaction is referred to the change in the molar concentration in the distinct…

Q: Many individuals who fought fi res at the Chernobyl nuclear disaster site were exposed to 0.25 Sv of…

A: The Chernobyl accident happened in April 1986 in Ukraine in which an explosion of reactors occurred…

Q: uclear reaction is an alpha emission and it released 1.98 x 1013 moles of alpha les then what is the…

A: We will calculate energy

Q: radioactive decay is most pro

A: Isotopes are chemical species with the same mass number but different atomic numbers. Unstable…

Q: How many radioactive disintegrations occur per minute ina 0.0010-g sample of 209Po that has been…

A: We know, k=ln2t1/2k - decay constant and t1/2 is half life

Q: A wooden artifact from an ancient culture has a l“C activity of 38.0 counts per minute. A new piece…

A: Radioactive decay follow first order kinetics. The decay constant for a first order reaction is give…

Q: What isotope is used for radioactivity dating of previously lived entity?

A: C-14 (Carbon-14) is a radioactive isotope. It has a half-life of 5,730.

Q: रव वiउddoraछ haाve hिष्या गएर बळ চखट्छ in a ivdeम नी बंक्याटकीनक्:- Hadidactive sotopes of am…

A: Radio-isotopes are defined as a isotopes of an element which has unstable nucleus and which can emit…

Q: A radioactive waste from a clinical laboratory contains 0.2 µCi (microcuries) of calcium-45 (45Ca)…

A: Answer -

Q: Si). A 510 grams In radionuclide decays 315 grams in 240 years, Inlhat is the half life of the…

A: As per our guidelines, we can solve only one question at a time.Please post other questions as next…

Q: If 180. mg of fluorine-18 is shipped at 8:00 A.M., how many milligrams of the radioisotope are still…

A: Given information: Initial concentration of fluorine-18 is 180 mg. Half-life is 109.7 min The rate…

Q: 6. Iridium is a radioactive elementused fortherapy in nucle armedicine. It decaysto% or 24, of its…

A: Answer: Nuclear reactions are first order reactions, therefore decay reaction of Ir will also be a…

Q: 107 109 Ag is 31 barn, and that of 'Ag formed by neutron absorption decay by utron-absorption cross…

A: Radio active  decay is the process by which unstable nucleus loses energy by  radiation.

Q: a) my dining utensils contain chromiun, are they radioactive? 5) should my oxyen be liquid or gaz?

A: Ans A) chromium used in dining utensils is mixture of stainless steel.  So it is safe.

Q: . The two stable isotopes of carbon are 12C and 13C. Predict the nuclides formed when 11C and 14C…

A: The radioactive decay process involves the disintegeration of an unstable nucleus to furnish new…

Q: A sample of wood from an Egyptian mummy case has a specific activity of 4.71 d/min g. How old is the…

A:

Q: A laboratory rat is exposed to an alpha-radiation sourcewhose activity is 14.3 mCi. (a) What is the…

A:

Q: 4. What is the energy released in this nuclear reactionO+n →C+He? (The atomic mass ofO is 16.999132…

A:

Q: In addition to the natural radioactive decay series that beginswith U-238 and ends with Pb-206,…

A: The natural radioactive decay series that begins with U-235 and ends with Pb is given below. Thus…

Q: samarium 151 is a beta emitter. write an equation for this nuclear reactiona nd identify the…

A: The atomic number of samarium is 62.  During the beta particle emission, the atomic number of…

Q: la. An example of a radioisotope that can be analyzed is m137Ba. This isotope is generated from…

A:

Q: c. Luster of 6 Isotope resulted from? a. Natural radioactive decay 6. Substitution of another…

A: Option a) & c) are the correct choices.

Q: What type of radioactive decay is the least penatrating?

A: We have to tell the type of radioactive decay has the least penetrating power. Radioactive decay is…

Q: Predict the mode of decay of (a) plutonium-239,(b) indium-120.

A: (a) Plutonium-239: The atomic number (Z) of plutonium ( Pu) is 94. So, plutonium-239 has 94 protons…

Q: Suppose a patient is given 155 mg of I-131, a beta emitter with ahalf-life of 8.0 days. Assuming…

A: Introduction: Radioactive decay: Radioactive decay or nuclear disintegration is a process in which…

Q: er the second set of conditions, they grew illumi Chlorella with "CO,. imination continued until all…

A: Ans. Carbon pathway in plant photosynthesis: Radioactive isotopes of carbon (14C) has been valuable…

Q: When the nuclide bismuth-214 decays to polonium-214, what kind of decay does bismuth-214 undergo?…

A: Given: Bismuth-214 decays to polonium-214.

Q: A 228-mL sample of an aqueous solution contains 2.35% MgCl2by mass. Exactly half of the magnesium…

A: Given: Volume = 228 mL Mass of MgCl2 = 2.35% Half-life of Mg-28= 21 hours= 21*60*60=75600 s density…