How the specific activity of an isotope in an object is used to determine the object’s age

Q: What is one thing that is necessary for a nuclear fission chain reaction? Each splitting event…

A: Nuclear fission : Nuclear fission is the reaction in which the atom's nucleus splits into smaller…

Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

A: The solution is as follows :

Q: Cesium-131, 13 Cs, is a radioactive isotope used to treat prostate cancer. The half-life of 131 Cs…

A: Rate constant ( k ) = 0.6931 / half life  Rate constant (k) = 0.6931 / 9.70days  Rate constant (k) =…

Q: In each of the following radioactive decay processes, supply the missing particle. 60Co -> 60Ni + ?…

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Q: A sample of wood from an Egyptian mummy case taken from an archaeological site is subjected to…

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Q: ¹¹C is often used in PET (positron emission tomography) diagnostic equipment. What nuclide is…

A: Positron Emission Tomography is a nuclear medicine imaging technique that is widely used in early…

Q: A radioactive isotope has a half-life of 84.3 minutes. How long will it take for the radiation from…

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Q: A freshly prepared sample of a certain radioactive isotope has an activity of 10.2 mCI. After 3.70…

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Q: Determine whether or not each nuclide is likely to be stable. Stateyour reasons.a. Ti-48b. Cr-63c.…

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

Q: Which nuclide(s) would you predict to be stable? Why?(a) ¹⁴⁶₆₀Nd(b) ¹¹⁴₄₈Cd(c) ⁸⁸₄₂Mo

A: Rules for the determination of the stability of the nuclide are: Nuclides with the magic no., i.e…

Q: With a high value of N/Z, an isotope will tend to decay through Positron Alpha Electron capture Beta

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Q: Calculate the radiation dosage in grays for a 75-kg person who is exposed for a 4.0 s to a 3.0 Ci…

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Q: Explain what is meant by the binding energy of an isotope

A: Isotopes are two or more atoms that have the same atomic number but different mass numbers. The…

Q: Define the term Nuclear Binding Energies?

A: Given term,      Nuclear Binding Energies

Q: Cobalt-60 (t1/2 = 5.26 y) is used in cancer therapy since the γ rays it emits can be focused in…

A: The given mass of Co = 5gm Molar mass is given as 60 g. The number of atoms is calculated as…

Q: Calculate the radiation dosage in grays for a 71-kg person who is exposed for 9.0 s to a 3.0 Ci…

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Q: A radioactive isotope has a half-life of 41.7 minutes. how long will it take for the radiation from…

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Q: Select the isotope that has the greatest stability per nucleon.

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Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

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Q: A radioactive isotope has a half-life of 24.5 minutes. how long will it take for the radiation from…

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Q: 2. Some mammoth bones found in Arizona were found by carbon-14 dating to be 1.13 x 10' y old. What…

A: t1/2 = 5730 y t = 1.13 X 104 y N0 = 15.3 dis/min/g N =?

Q: What is the binding energy of 50Ti? The mass of 50Ti is 49.9448 amu.

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Q: Determine whether or not each nuclide is likely to be stable. State your reasons. a. Ti-48 b. Cr-63…

A: The nuclide is considered to be stable if there are even number of protons and neutrons. If there…

Q: The a-decay of 238U (t,/2 = 4.47x10°y) leads to 234TH (t/2 = 24.1d). A sample of uranium ore should…

A: Given, α decay of U238 to T234h. The isotopic abundance of U238 (natural) = 99.3 %

Q: 2+ A chemist wishing to do an experiment requiring " Ca* (half-life = 4.5 days) needs 9.0 ug of the…

A: Given :- Half life of 47Ca2+ = 4.5 da  Time = t = 48 hour = 2 day  Amount of 47Ca2+ present at time…

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

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Q: A wooden object from an archeological site is subjected to radiocarbon dating. The activity due to…

A: Given, The half life of 14C is 5715 yr. Activity of 14C is 11.6 disintegration per second Activity…

Q: In each of the following radioactive decay processes, supply the missing particle. a. 60Co -->…

A: a)

Q: A radioactive nuclide that has a life of 5 hours has an initial amount of 50 grams. After 15 hours,…

A: The formula for the ratio of the initial amount and amount after time t is, NN0 =12tTwhere,N0 =…

Q: 12. The mass of a proton is 1.0073 u and the mass of a neutron is 1.0087 u. The mass of an alpha…

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Q: Some mammoth bones found in Arizona were found by carbon-14 dating to be 1.13 x 10 4 y old. What…

A: The formula for decay of radioactive material is Nt = No (1/2)t/t1/2 where, Nt = number of…

Q: The spent fuel elements from a fission reactor are much more intensely radioactive than the original…

A: Given: The spent fuel elements from a fission reactor are much more intensely radioactive than the…

Q: 3. If a radioactive sample had an activity of 5.0 mCi, how many disintegrations per second this…

A: We know that 1 Curie or 1 Ci= 3.7×1010Bq( bacquerel). And 5 mCi = 5×10-3Ci = 5×10-3×3.7×1010Bq.  =…

Q: 19. Mass defect is_ I. the binding energy that holds the nucleons together. II. the missing mass…

A: Calculations reveal that the supposed mass of a particular atom is not always the same as that of…

Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

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Q: A chemist wishing to do an experiment requiring " Ca+ (half-life = 4.5 days) needs 8.0 ug of the…

A: Given, No = 8.0 microgram t1/2 = 4.5 days = 108 h t = 72 h

Q: Radioisotopes are radioactive due to having   radioactivity stored in it   unstable nuclei   excess…

A: The nuclei of radioisotopes are unstable, so they constantly decay and emit radiation.

Q: Explain what is meant by the half-life of a radioactive nuclide. Living wood has an activity of 16…

A: A radioactive nuclide is an atom that has excess nuclear energy, making the atom unstable.…

Q: Rb ? + 37

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

Q: The half-life of carbon-14 is 5730 years. The wrapping of an Egyptian mummy gave off 3.8 counts per…

A: From the given data we haveHalf life of carbon-14=5730 yearsWrapping of mummy=3.8…

Q: A radioactive isotope has a half-life of 46.3 minutes. how long will it take for the radiation from…

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Q: The most abundant isotope of uranium-238 which has an isotopic mass of 238.0508 g/mol. What is the…

A: Given that: Mass of Uranium-238 = 238.0508g/mol = 238.0508 amu               (1amu = 1g/mol) Binding…

Q: 5. Classify each nuclide as stable or unstable a. 232Th b. 20Ca 265 c. 104Rf d. Ag c. 1301 40 d.…

A: The stability of nuclide is determined by neutron to proton ratio. For atoms upto atomic number 20…

Q: Unstable parent nucleus Daughter Atomic number: 1 fewer nucleus Electron (-) Proton Neutron- Atomic…

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

Q: 3. A sample of wood from an Egyptian mummy case taken from an archaeological site is subjected to…

A: Recall the following expression to find the age of wood which was used to make the case of Egyptian…

Q: (Q110) The first five steps of the decay of neptunium-237 are alpha, beta, alpha, alpha, beta decay.…

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Q: 1. Which of the following types of radiation is composed of particles which carry a negative charge?…

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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.