A beta-emitter would be safely stored by all the following except   wrapped in a piece of aluminum foil   inside a sealed metal canister   wrapped in a piece of paper   behind a lead-reinforced concrete wall 3 meters thick

Q: Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a…

A:

Q: Find the initial amount of a radioactive element with a half-life of 21.7 hours, when the remaining…

A:

Q: Americium-241 is widely used in smoke detectors. Calculate the amount of americium-241 consumed in a…

A:

Q: If a patient is administered  10 ng  of  technetium−99m,  how much will remain 1 d later, assuming…

A: The number of half lives present in 1 day (24 hours) is 4.

Q: A radioisotope of argon, Ar, lies below the "band of stability." One would predict that it decays…

A: The radioisotope lies below the band of stability means that the isotope contains lesser number of…

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

A:

Q: Suppose one food irradiation plant uses a 137Cs source while another uses an equal activity of 60Co…

A: In food irradiation, food is treated with ionising radiations (like gamma rays, X-rays, electrons)…

Q: dentify each as alpha, beta, or gamma decay.

A: Radioactive decays are generally of three types namely: Alpha decay, beta decay and gamma decay.…

Q: What is the half-life of the bizarre isotope Toddium - 419 (it is a makeup element) if after 4.00…

A: Time period, t = 4.00 weeks Initial amount, [A]o =950.0 g Final amount, [A] = 29.6875 g Calculation…

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

A:

Q: Lithium-6 is formed from the electron capture of what substance?

A: Nuclear reaction: A nuclear reaction must cause a transformation of at least one nuclide to another.…

Q: Polonium-208 is an alpha emitter with a half-life of 2.90 years. How many milligrams of polonium…

A: Given that, the Polonium-208 is an alpha-emitter. the half life (t1/2) = 2.90 years We have to…

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

A:

Q: What is being desribed when discussing a beta 1,4-linkage? Draw a rough example of what this looks…

A: A glycosidic bond is a covalent bond that attaches 1 carbohydrate(sugar) compound to another group,…

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

A: we have to fill the given table using the concepts of radioactivity

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

A: Given  Sample = 2umol Decreases by 1/8

Q: If a patient is administered  60 ng  of  technetium−99m,  how much will remain 1 d later, assuming…

A:

Q: 49. 19b. Calculate the energy released in joules per mole of uranium splitting. Answer in scientific…

A: Since you have posted multiple independent questions in the same request, we will solve the first…

Q: The following are factors that influence the penetration activity of radiation through a barrier…

A: Following factors influence the penetrating power of a particle.  i.e. the penetrating activity of…

Q: A bone taken from a garbage pile buried under a hillside had 14C/12C ratio 0.477 times the ratio in…

A: We have to find the date when the animal was buried.

Q: Whether or not the process is observed in nature, which of the following could account for the…

A: In electron capture and positron emissions mass number remain unchanged but atomic number is…

Q: half-life of radioactive elements. 18g Hydrogen is supplied 5 points with 170g air to produce water.…

A: Half life of radioactive element:  half-life, in radioactivity, the interval of time required for…

Q: Cobalt 60 is a γ emitter with a half-life of 5.27 years and a γ energy of 1.3 MeV. What is the…

A: Given :  Half-life of Cobalt 60 = 5.27 years γ energy = 1.3 MeV wavelength of the γ rays = ?

Q: electroplating

A: radioisotopes get split into smaller atoms

Q: The specific activity of a wood article found in the Lascaux Caves in France is 0.0375 Bq g-1 due to…

A: The activity of wood article due to 14C is 0.0375 Bq/g. The half-life of 14C is 5730 years. The…

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

A: t12 = ln 2K      ⇒ K =ln2t12      , Initial radioactivity  r = KN

Q: How old in years is a bottle of a solution if the deuterium 2H content is 67% that of a new wine?…

A: Given data: t1/2=100 years , No= 100 , N= 67

Q: Iodine-131 is a convenient radioisotope to monitor thyroid activity in humans. It is a beta emitter…

A: To find: why is NaI a good choice for the source of the iodine.

Q: A 25.0-mL sample of 0.050 M barium nitrate solution wasmixed with 25.0 mL of 0.050 M sodium sulfate…

A: (a)

Q: 21.28Complete and balance the following nuclear equations by supplying the missing particle: ),N +…

A: Given unbalanced nuclear reactions are : a). 7N14 + 2He4 --------> ? + 1H1  b). 19K40 + -1e0…

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

A: If t is the time required to reach the concentration N from an initial concentration N0, and t1/2 is…

Q: The time it takes for half of a radioisotope's atoms to decay (like Carbon-14) ___.   is used to…

A: Half life is the time required by a quantity or a substance to reduce to half of its initial value.…

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: A wooden artifact is burned and found to contain 21g of carbon. the 14c activity of the sample is…

A: The half-life of a reaction is the time taken for the reactant to reduce to half its initial value…

Q: The sample of 4x.is a B emitter has an activity of 0.5 uCi. In10 days the activity of the sample has…

A:

Q: b) Calculate the mass defect and energy released,Q for each of the reaction below. (lu = 934MeV, H =…

A: given information- H11 +L37i →H24e + H24e H24e+ N714 → O817 + H11

Q: The presence of which element on earth provides evidence that our solar system was formed from the…

A: The presence of which element on earth provides evidence that our solar system was formed from the…

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

A: The radioactive decay follows first order kinetics. The rate law is rate = k [Reactant} Rate = k x N…

Q: What is the mass-defect of nickel N-62(atomic number=28, atomic weight =61.928345

A: The mass defect is the difference between the mass of a given nucleus and the total mass of its…

Q: What percentage of Technituum-99m would remain in your body 24 hours after injection with this…

A: Given,

Q: A radioisotope has a 15-second half-life. After 45 seconds there will be   0% left   50% left   25%…

A:

Q: Which of the following is a limitation to radiometric dating? Not enough parent and/or daughter…

A: There are some statements which are : 1) Not enough parent and/or daughter materials to measure. 2)…

Q: The products of the following reaction Positron emission from silicon-26 are ______ and ______

A: The element's atomic number (Z) will be decreased by 1 and the element's mass number (X) remains the…

Q: What enables a radioisotope to substitute for an ordinary (nonradioactive) atom of the same element…

A: The process of emitting radiations spontaneously is called radioactivity. A radioactive nucleus…

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

A: Given Sample 19 umol Or 1/16 decreases