Tritium is a radioactive isotope of hydrogen (t1/2 = 12.32 y) that has several uses, including self-powered lighting, in which electrons emitted in tritium radioactive decay cause phosphorus to glow. Its nucleus contains one proton and two neutrons, and the atomic mass of tritium is 3.016 amu. What is the activity of a sample containing 1.00mg of tritium (a) in Bq and (b) in Ci?

Q: D. The half-life of 210Pb is 21 years. How old is a painting in which the activity of 210Pb activity…

A: Calculation

Q: snip

A: The given nuclear reaction is shown below:

Q: have a sample of Co-60. On the sample, it is recorded that the activity of the cobalt was 3.29x103…

A: Given sample is of cobalt-60  Half life of cobalt-60 = T1/2 = 5.27 years  Initial activity = A0 =…

Q: 2) What is the activity of a 1 gram sample of 1? (t12 = 3.38 x 10' seconds)

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Q: A sample of cobalt-60 was labelled as having an activity of 3.25mCi, but upon inspection, it…

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Q: How long can a 54-lb child be exposed to 1.0 mCi of radiation from 222Rn before accumulating 1.0…

A: How long can a 54-lb child be exposed to 1.0 mCi of radiation from 222Rn before accumulating 1.0…

Q: (28) An archaeologist claims that a bone in her collection is from a saber-toothed tiger that is…

A: Given that, for a carbon-14 The initial decay rate is -dNdt0 = 15.3 disintegrations per minute per…

Q: What is the activity

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

A: Radio carbon dating is a technique used to determine the age of the wooden artefact or…

Q: You have a giant barrel of a low-sodium salt, which is potassium chloride, that contains 10 g of…

A: Given: Amount of radioactive 40K  = 10 g Half life = 1.25 x 109 years To determine: i) Radioactivity…

Q: Nuclear medicine often uses radioactive samples as a tracer to monitor processes inside the body.…

A: he a

Q: What radionuclide technique can be used to estimate the age of fossils up to 50,000 years old?

A: Radionuclide: It is also known as Radioactive nuclide, radioactive isotopes. These are the atoms…

Q: Explain why it is safe to use radioisotopes to diagnose medical problems.

A: To find: Why is is safe to use radioisotopes to diagnose medical problems

Q: How long will it take for 19.9% of a dose if I-131 to decay? Express answer in days as three…

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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: A rock contains 0.637 mg of 200Pb for every 1.000 mg of <3°U present. Assuming that no lead was…

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Q: old-198 is a β emitter used to treat leukemia. It has a half-life of 2.7 days. The dosage is 1.0…

A: Interpretation: The time taken for 70.-mCi dose of Gold 198 to decay to an activity of 2.2 mCi is to…

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: radioactive material initially is observed to have an activity of 8000 decays/sec. If twelve hours…

A: Radioactive decay follow first order kinetics. For first order reaction:  Kt = ln(A0/At) K = Rate…

Q: A certain amount of a sample of 96x has an activity of 0.1026 µCi. In 8.0 days, the activity of the…

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Q: a. Write the equation for the decay of ²5}Am by a- particle production. b. The complete decay of…

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Q: A vial containing radioactive selenium‑75 has an activity of 3.0 mCi/mL . If 2.7 mCi are required…

A: Given: Selenium-75 activity is 3.0 mCi/mL.

Q: What would be the ¹4C activity in a 2500-year old wooden object? Assume that the ¹4C activity of an…

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Q: World War II aircraft had instruments with glowing radium-painted dials. The activity of one such…

A: Given , Activity =2.0×105 Bq

Q: Gallium-65 has a half-life of 15.2 minutes. a. How long would it take for 99.0% of a sample of this…

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Q: A 27.00 gg sample of water containing tritium, 3-1H, emits 1250 beta particles per second. Tritium…

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Q: Q6: A fission reactor accident evaporates 5 x 10° Ci of 90Sr (T2=27.7 yr) into the air. The 9Sr…

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Q: Consider 1 mole (238 gm) of isotopically pure uranium U-238. Calculate its activity for the next 1…

A: Given: The molar mass of uranium = 238 g/mol. The given mass of uranium = 238 g. The number of moles…

Q: You have a sample of Co-60. On the sample, it is recorded that the activity of the cobalt was…

A:

Q: A chemist wishing to do an experiment requiring "c (half-life = 4.5 days) needs 7.0 ug of the…

A: GIVEN:-

Q: 10.2 Palladium-107 undergoes beta (B) decay (t₁/2 = 6.5 x 105 yr). How long will it take for 12% of…

A: The radioactive decay involves first-order rate kinetics.

Q: Radioactive isotopes used in cancer treatment have a shelf life simply because the active nuclei…

A: Answer :-  The source is barely (just) usable.…

Q: a. Write the balanced nuclear equation for the alpha decay of Neodymium-144. Write the atomic…

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Q: A nuclide 22086X decays to a new nuclide Y by emission of two alpha particles and two beta…

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Q: A volcanic eruption melts a large area of rock, and all gases are expelled. After cooling, ""Ar…

A: Since the decay reactions are first order reaction. Hence we can say that  1) half life = ln(2) / K…

Q: 21.2) Calculate the time required for 62.40 % of a sample of 243X (t1/2 = 290.4 h) to decay. Use…

A: The radioactive decay process follows the first order kinetics.  Given: Percent of sample decayed =…

Q: When BF3 is bombarded with neutrons, the boron undergoes an α decay, but the F is unaffected. A 0.20…

A: The pressure of container is calculated in step two.

Q: ome mammoth bones found in Arizona were found by carbon-14 dating to be 1.13 x 104 y old. What must…

A: The age of the sample follows first order kinetics. This method is known as carbon dating. First…

Q: When any radioactive dating method is used, experimental error in the measurement of the sample's…

A: Initial activity , Ao=0.23 Bq per gram of carbon in a living organism

Q: Calculate the specific activity (in C/g) and the decay constant (in sec') for a 10g sample of…

A: Given the mass of the radioactive sample = 10 g  Activity of the sample = 3.08*1015  particles per…

Q: A rock contains 0.684 mg of 200Pb for every 1.000 mg of 238U present. Assuming that no lead was…

A: Radioactive decay follows first order kinetics.  k = 0.693/t0.5 ....(1)  Here, t0.5 = half-life =…

Q: The question is: The activity of Arsenic-76 after 157.8 hrs is 120.2 micro milicuries. What was the…

A: The activity depends on the no of atom present in the sample .

Q: 30. One common electrolyte in the human body is potassium ions. A small percentage of these lons are…

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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.