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

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

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Q: A sample of wood from an Egyptian mummy case has a specific activity of 9.41 d/min-g. How old is the…

A: Solution: We know that --- for a sample of wood from an Egyptian mummy which is related to…

Q: What is the nuclear binding energy?

A: The minimum energy needed to disassemble atom's nucleus into its component parts such as protons and…

Q: 108, 108In → 40- 48cd + ? Which of the following needs to be included on the right hand side in…

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Q: Fe has a mass defect of 0.58872 amu. What is its binding energy per nucleon?

A: Given:   Mass defect of Fe is 0.58872 amu.

Q: e binding energy as the nuclide disintegrate (a) per nucleon in MeV .

A: (a) Binding energy: The energy required to separate the nucleus into individual protons and neutrons…

Q: a wooden object from the site of an ancient temple has a carbon-14 activity of 10 counts/min…

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Q: What physical constants must be known to use radioactive dating?

A: Radioactive dating is the technique used to determine the age of a rock, wood, or either old…

Q: If only 50% of the original amount of a radioisotope remains, a. half the time has gone by b. after…

A: Half life :-  in radioactivity, the interval of time required for one-half of the atomic nuclei of a…

Q: Magnesium-27 is an unstable radioisotope. For it to become stable, it has to undergo

A: Mg has 27 mass no. and 12 atomic number. Hence, it has 12 protons and 27-12 = 15 no. of neutrons.…

Q: 15.0 mCi of Tc-99 is required for users to scan a patient brain at a hospital. A freshly prepared…

A: Given: Activity of isotope required for treatment = 15.0 mCi. The initial activity of the isotope =…

Q: What is the nuclear binding energy per nucleon of the most stable isotope Iron-56 in terms of…

A: Nuclear binding energy can be defined as the minimum amount of energy required to break down an…

Q: The formation of helium nucleus, from the fusion process of two deuterium nuclei is shown as below:…

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Q: If a mineral contains 1.56 % of its parent isotope, how many half-lives have gone?

A: Half Life Real analysis by the simple Concentration Analysis is mentioned in step-2  1st order…

Q: A sample of Carbon is observed to have 15g left after an estimated time of 10000years. Determine the…

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Q: Which of the following conditions is not necessary for a sustained chain reaction ? A) Fast moving…

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Q: Would fusing two stable nuclei that have mass numbers in the vicinity of 100 be anenergy-releasing…

A: No. Stable nuclei that have mass numbers around 100 are the most stable nuclei. This should not form…

Q: What nuclide undergoes electron capture to produce ¹⁰⁸Pd?

A: The process of electron capture involves radioactive decay of an isotope that has a large number of…

Q: Obtain the mass defect (in amu) and binding energy (in MeV) for the 5828Ni nucleus.What is the…

A: Nickel -58 has : 28 protons. 30 neutrons. Mass of one: Proton = 1.007825 amu Neutron = 1.008665…

Q: Nuclear Binding Energy II Calculate the binding energy per nucleon for the nucleus. (Atomic masses:…

A: B.E per nucleon calculated as total B.E /Mass no.

Q: After 3 half-lives, the activity of a radioisotope drops to _____ of the original. Group of answer…

A: We have to predict the activity with respect to original activity.

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: The amount of a radioisotope that remains after two half-lives have passed is:

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Q: rbon decays at a rate proportional to the amount present.

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Q: . On October 26, 2019, an archaeologist unearthed a radioactive specimen. Month later, he weighed…

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

Q: find mass defect and the binding energy

A: We have given that  actual mass of a 141Pr atom is 140.907648 amu.    (a) Calculate the mass defect…

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

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Q: A piece of a spear handle is found in an archaeological dig in Central America. It contains 35.2% as…

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Q: When a radioactive isotope 86Ra228  decays in series by the emission of three α-particles and a β…

A: We know that: Decay of one alpha particle reduces the atomic number(Z) by 2 units and mass number…

Q: What is the missing symbol in this plutonium fission reaction?

A: The given plutonium fission reaction is, For atomic number of the unknown = 94 - 38 = 56 The symbol…

Q: How many of the nuclei of a radioactive sample containing 2048 nuclei decay in 3 years, if it's half…

A: Half life of a radioactive sample is the time in which half of the sample is decayed i.e. 50% of the…

Q: Write a partial decay series for Th-232 undergoing the following sequential decays: a, ß, a, ß

A: When a radioactive element emits an alpha (α) particle, the mass number of the daughter element is…

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: Gamma decays do not produce a daughter that differs from the parent. Why?

A: Gamma decays Gamma (γ) ray is a small wavelength (10-12 cm ) electromagnetic radiation, emitted from…

Q: While harder to access another radioactive isotope Tc 93 has a halt life of 2.73 hours of it weee…

A: suppose it is possible to collect Tc 93m, it would be a good substitute because of its high…

Q: Bromine-80 has a mass defect that is equal to -1.15x10-7 kg. Determine the binding energy per…

A: Using Einstein’s equation, E =mC2 Where, E = Binding Energy per nucleus  m = Mass defect per nucleus…

Q: The measured nuclear mass of Ge-70 is 69.906694 amu. Calculate the nuclear binding energy for Ge-70…

A: Solution :    Binding energy is defined as the energy required to separate nucleons into their…

Q: Predict the mode of decay begin 65^N undergoes. Positron Beta It is stable and does not undergo…

A: The beta decay of 65Ni is shown

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: 5.00 hours of decay, 3.4g of the substance remain. What is the

A: Initial mass of substance is 17.8g Mass of substance after left is 3.4g Decay time 5 hours

Q: ____________________________ is the penetrating rays and particles emitted by a radioactive source.…

A: The penetrating rays and particles emitted by a radioactive source ??     1. Transmutation…

Q: the half life of molybdenum -99 is 67 hr. a 200 ug quantity decays, over time, to 25 ug. how much…

A: Here given, Initial amount (N0) = 200 ug Amount left undisintegrated (N) = 25 ug Half life (t1/2) =…

Q: What fraction of the decay energy is this, noting that the decay mode is π0 → ϒ+ϒ (so that all the…

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Q: Uranium-235 underwent a radioactive decay series producing the following particles in succession:…

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Q: The half-life of a radioisotope is > View Available Hint(s) O the time it takes for the radioisotope…

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Q: Which reaction(s) has a product that would undergo beta-minus decay?

A: The nuclear process in which there is the conversion of neutron into a proton, as the result of…

Q: A certain artifact is tested by carbon dating and found to contain 73% of its original carbon-14. As…

A: Given : Concentration of carbon present = 73 % of initial concentration  And concentration of radium…

Q: time for amount of initial radioactivity radionuclide to decrease to 1/16 of initial amount

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Q: Predict the mode of decay begin 65^ Ni undergoes.

A: The heavier isotopes having mass number more then 200 under go alpha decay. Light isotopes( mass…

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.