Activity 2 1 3 Time Rank the samples according to half-life. (smaller first.),
Q: A radioactive substance has a half-life period of 30 days. What is the disintegration constant ?
A: We know thatλ=ln2T1/2Hereλ=disintegration constantT1/2=Half life of substance
Q: Tritium, or 3H, has a half-life of 12.32 years. Imagine a sample of tritium is prepared. (a) What…
A: half life = 12.32 years Original number of nuclei = No
Q: Find the mean-life of 55Co radionuclide if its activi 4.0% per hour. The decay product is…
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Q: Describe Radioactive Decay Chains?
A: Radioactive decay: Radioactive decay means a process in which the unstable nuclei of an atom losses…
Q: If we split a nucleus into two smaller nuclei, with a release of energy, has the average binding…
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Q: The radioactive element 2,6°Co has a half life of years. If you had a sample of 17 g, about how long…
A: Concept: Here, in this Question we will use the Formula for Half Life that is, dNdt=-λNOn…
Q: If there are 20 mmol of the radioactive isotope 3H (half-life 12 years) at t = 0, how much 3H remain…
A: Initial concentration of radioactive element is Half-life time is Find:(a) Concentration of at…
Q: In radioactive decay of cadmium lab. If you allowed 3 minutes between each trial instead of 10…
A: The half-life of a radioactive substance is the time it takes for half of the material to decay.
Q: What fraction of a radioactive sample is left after exactly 6 half lives? Give your answer to 3…
A: Number of half life (n) = 6
Q: Consider an initial amount of 708g of radioactive material with half-life h=3.2hdays. Use a…
A: Write the expression of radioactive degradation. N=N0e-t/t1/2
Q: The photoelectric work function of potassium is 2 eV. What potential difference would be applied…
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Q: The radioactive isotope 241Am, with a half-life of 432years, is the active element in many smoke…
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Q: Assume that the decay rate for Carbon 14 is k=0.00012. If charcoal found in an ancient fire pit…
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Q: lease answer the following question(s): 1. The decay of radioactive substance is given by -t rch…
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Q: (1) Half life of carbon 14 is approximately (a) 5912 years (b) 6912 years (c) 3172 years (d) 5715…
A: Part (i) The carbon 14 half-life is approx. 5715 years.
Q: the sample must be due to radioactive decay. With all of this in mind, if we find that a rock…
A: This problem can be solved using radioactive decay concept.
Q: Using the Line of Stability graph, predict the type(s) of decay that each of the following…
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Q: Calculate the half-life of Th-232 which has a decay constant of 49.15×10-¹2 s²¹.
A: The rate at which unstable radioactive nuclei decay in a sample of material is called the activity…
Q: The half-life of a radiotracer is 3 hr. (i) Determine the decay constant of the radiotracer, (ii)…
A: Given, half life of radio tracker is, t12= 3hr i) So decay constant is, λ = ln2t12=ln23hr=0.23 hr-1…
Q: What is half-life?
A: The half life is related to the radioactivity. The time in which the number of atoms becomes half…
Q: A piece of wood found at an archeological site was found to have an activity of 14C activity 28% of…
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Q: Calculate the binding energy per nucleus of Iron-50.(Iron-56 has an atomic number of 26 and has a…
A: The binding energy of a nucleus is the energy that is used to keep the nucleons from breaking apart…
Q: DATING THE ICEMAN OTZI. On 19 September 1991, the Iceman dubbe "Ötzi" was discovered in the Italian…
A: The activity of iceman otzi was found 0.121 decays/second per gram of carbon. Using this…
Q: (DIFF:D)A living specimen in equilibrium with the atmosphere contains one atom of 14C (half-life = 5…
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Q: Ex6/ Barium 137 has a half-life of 156 seconds. An initial activity of 2000 disintegrations during a…
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Q: A particular radioactive material was weighed exactly 1 year ago, showing a mass of 200 g. If the…
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Q: A radioactive substance initially contains 20000 thorium Th230 isotype. How many of this radioactive…
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Q: 1.) The decay constant, , is related to the probability that a nucleus will decay in a given unit…
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Q: The age of a piece of wood from an archeological site is to be determined using the Carbon-14…
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Q: A wooden object found in an indian burial groud and subjected to radiocarbon dating. The decay rate…
A: Given: The final disintegrations N = 10 disintegrations per minute per gram carbon.
Q: A particular rock is thought to be 260 million years old. If it contains 3.70 mg of 238U, how much…
A: The initial amount of substance is,
Q: One nuclide in each of these pairs is radioactive. Predict which is radioactive and which is stable:…
A: The stability of an atom find by two methods 1st its neutron proton ratio and Weizsacker…
Q: (19) Remains recovered in a tomb are found to have 72% of its Carbon-14 remaining. How old might…
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Q: Determine the age of a certain rock sample: carbon -14 half life = 5730 years. An archeology dig…
A: Given that: t0.5=5730 yrs.A=1 CpmA0=16 Cpmλ=?t=?
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