A sample of the inner part of a redwood tree felled in 1874 was shown to have 14C activity of 4.29 dpm/g. Calculate the approximate age of the tree. Use 13.4 dpm/g for the value of A0. t1/2 of 14C = 5730 years (Round your answer to a whole number)

Q: 1) If the activity of a purely radioactive sample of 55Fe measured to be 0.5 mCi. What is the number…

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Q: The activity of 30pg of 247Cm is nCI, Calculate the half-life of 247Cm in unit year. a. 1.55 x 1015…

A: According to Q&A guidelines of Bartleby, we are supposed to answer only the first question out…

Q: The graph below shows how the activity in counts per minutes (c. p. m) of 1.00g of processed carbon…

A: (i) According to the graph initial activity of 16 c.p.m is reducing to 8 c.p.m in 5000 years( as…

Q: Hydrogen-3 is radioactive and has a half life of 12.3 years. Calculate the activity of a 6.3 mg…

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Q: To measure the volume of the blood system of an animal, the following experiment was done. A 1.0-mL…

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Q: oday, in the element Uranium, the mole fraction of the 238U isotope with a half-life of 4.51 * 10 9…

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Q: Todine-125 is radioactive and has a half life of 60.25 days, Calculate the activity of a 9.1 mg…

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Q: Let N be the number of atoms of Cs137= 7.3*10^22 atoms. Also, let λs be the “probability of Cs137…

A: The product of N & λs is the number of decays per second, which is the activity of the sample.…

Q: Thallium-201 is used medically to diagnose heart problems. The half-life of thallium-201 is 72.9…

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Q: The isotope iodine-131 is used as a tracer in medical imaging. It has half-life of about 8 days.…

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Q: The half-life of cobalt is 5.3 years. How much of a 1.000- mg sample of cobalt-60 is left after 15.9…

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Q: Cesium-137 is radioactive and has a half life of 30. years. Calculate the activity of a 5.0 mg…

A: Here we are required to find the activity of 5mg of radioactive sample of Cs-137.

Q: A freshly isolated sample of 90Y was found to have an activity of 2.4 x 105 disintegrations per…

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Q: The half-life of 232Th is 1.4 x 100 yr. Find the number of disin- tegrations per hour emitted by 1.0…

A: Some nuclei are unstable and undergo a loss of energy in the form of radiation. This process is…

Q: The half-life of protactinium-217 is 4.9 x 10-3s. How much of a 3.50 mg sample of 21791 Pa will…

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Q: How long would it take for 85% of 131I to decay? [ Half-life of 13!I is 8.04 days]

A: Since you have asked multiple questions, we will answer first question for you. In order to get…

Q: Suppose the amount of a certain radioactive substance in a sample decays from 6.70 mg to 700. µg…

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Q: Technetium-99m (gamma emitter, t1/2 = 6.02 hr) is widely used for diagnosis in medicine. A sample…

A: [Ao] = 4.52 × 10-6  t1/2 = 6.02 hr

Q: Find the number of electron and neutrons in the following:  195Pt+2

A: 195Pt+2 Mass Number = 195  Charge = +2  Number of electrons = ? Number of neutrons = ?

Q: One of the radioactive isotopes used in medical treatment or analysis is chromium-51. half-life of…

A: Radioactive decay follows first-order kinetics. The half-life of the first-order reaction does not…

Q: 43 of 75 The half-life of element X is 500 years. If there are initially 8 g of X, how much will…

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Q: The radioisotope phosphorus-32 is used in tracers for measuring phosphorus uptake by plants. The…

A: This problem is based on nuclear chemistry. This is a first order reaction. We have to use the…

Q: (Q103) The "goal" of spontaneous decay experienced by unstable nuclides is to: Decrease the number…

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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: 6. 4 12 4.4Вe + 2Hе 6С+ le On 2 1H 0. 1H

A: We know that

Q: List the six stages in the nuclear fuel cycle. Which stage(s) of the nuclear fuel cycle does…

A: Interpretation: 1. To list six stages in the nuclear fuel cycle 2. To which stage of the nuclear…

Q: Q3.Give two example each for the transmutation reaction produced by protons,deutron,neutron,…

A: Transmutation reaction: Nuclear transmutation is a conversion of one chemical element or an isotope…

Q: You're interested to determine the age of the vase and, remembering that you can use carbon dating…

A: Answer: Given data-[14C]0 = 10-10 % and t1/2 = 5745 and A = 10-13%

Q: The cloth shroud from around a mummy is found to have a ¹4C activity of 10.1 disintegrations per…

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Q: The probability that a certain nucleus undergoes radioactive decay in a unit time is called decay…

A: The detailed solution is given in the following step.

Q: Chlorine-36 is a B emitter, with a half-life of 3.0 x 10 years. Part A How many particles are…

A: Formula used is  N = No(1- e-λt)  where No is the particle in given sample  t is time given  λ =…

Q: The 4520Ca has a Half-Life t1/2 of 163 days. the value of the radioactive constant λ in day-1 is:

A: Please find the attached images for the answer

Q: Part 2 (1 point) Feedback Calculate the binding energy of 11C. The atomic mass of 11C is 1.82850 x…

A: The given data for 11C are:Atomic Mass of 11C = 1.82850 x 10-26 kgSpeed of Light = 299,792,458 m/s…

Q: Show that you can calculate the radioactivity of a sample from the relations r = r0e-λt and r =…

A: When a radioactive material undergoes decay, the number of nuclei undergoing the decay, per unit…

Q: A radiopharmaceutical has a biological half-life of 17 hr and an effective decay constant of 0.30…

A: When a radiopharmaceutical takes time to decrease to half of its initial value, then it undergoes…

Q: Explain the theory behind C14 dating.

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

Q: 28Mg lies above the band of stability- its most likely mode of decay is what?

A:

Q: Cobalt-60 is radioactive and has a half life of 5.26 years. Calculate the activity of a 4.0 mg…

A: Answer:Decay constant: Radioactivity:

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.