State why the half-life of the technetium isotope (~6hrs) makes it suitable to be a tracer

Q: Discuss two ways in which a proton-rich nuclide may decay

A: The two ways in which a proton rich nuclide decay are positron emission and electron capture.…

Q: Suppose that you start with 3.65 g of a pure radioactive substance and determine 19.6 h later that…

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Q: A 44.5 g sample of carbon has an activity of 8.55 decays per second. How old is it? Please give your…

A: Given data The mass of the sample of carbon is given as m = 44.5 kg.  The number of decays is given…

Q: The radioactive isotope Gold-198 has a half-life of 64.80 hrs. A sample  containing this isotope…

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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: The half-life disintegration 90 of 38 Sr is 28 years. What rate of 15 mg of this

A: Here, we calculate  the disintegration  rate of this isotope  as given  follow;

Q: The half-life of radium-226 is 1590 years. Suppose we start with a sample of radium-226 whose mass…

A: Given: The half-life of radium = 1590 years Mass of the sample = 50 mg

Q: Calculate the mass of a sample of (initially pure) 40K that has an initial decay rate of 1.70 * 105…

A: The initial decay rate,

Q: 64 O The isotope "K can decay to either "Ca or "Ar; assume both decays have a half-life of 1.26 x…

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Q: 4. A radioactive sample, with an initial mass of 28 mg, has a half - life of 5 days. What is the…

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Q: 5.1 A sample of the isotope 1311, with a half-life of 8.04 days, has an activity of 10 mCi at the…

A: Given , half-life of I131 = 8.04 days Activity = 10mCi Upon receipt of I131 in medical laboratory ,…

Q: Can carbon-14 dating be used to measure the age of a rock? Explain.

A: Carbon dating is a method which is used to find age of objects younger than 50,000 years.

Q: The radioactive isotope (183-Ta) has a half life of 5.11 days. A sample containing the isotope as an…

A: Given data: Half-life t12=5.11 days Initial activity R0=4.5×108Bq

Q: image11

A: The relation of the half-life in terms of wavelength is λ=0.693t1/2 Let's write the decay rate…

Q: 231 The half-life of isotope Pa is 32.76 years. Calculate the activity of 3e-06 g of this isotope in…

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Q: Mantles for gas lanterns contain thorium, because it forms an oxide that can survive being heated to…

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Q: 2. Tritium, (3 H) is used in glowing "EXIT" signs located where there is no electricity for light…

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Q: Tritium has a half - life of 12.33 years. What fraction of the nuclei in a tritium sample will…

A: Formula to calculate the fraction of remaining sample after 5.00 yr. is,

Q: Tritium has a half-life of 12.33 years. What fraction of the nuclei in a tritium sample will remain…

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

Q: The radioactive isotope 198Au has a half-life of 64.8 h. A sample containing this isotope has an…

A: Given data: The half -life of A198u is T1/2 =64.8 h The initial activity of the sample ,A =40 μCi…

Q: The half- life of radioactive cobalt- 60 is 5.26 years.  a) Calculate the mean life and the…

A: SOlution: given that half- life of radioactive cobalt- 60 is 5.26 years.

Q: A piece of charcoal used for cooking is found at the remains of an ancient campsite. A 1.19 kg…

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Q: 25.3. Draw a labelled sketch of the relation N= N,e. An element has a stable isotope 139 %3D 138 10…

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Q: Discuss the merits of using high energy electrons to determine nuclear radii rather than using alpha…

A: Electrons are not subject to the strong nuclear force so electron scattering patterns are easier to…

Q: What is the half-life of an isotope that decays to 6.25% of its original activity in 24.2 h?…

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Q: The remains of an ancient cave were unearthed. Analysis from charcoal in the cave gave 12.0…

A: Half life is defined as the interval of time required to decay half of the nuclei of radioactive…

Q: The half life of 60CO is 5.7 years. Find the activity of 2.54 milligram of 60Co. Give your answer in…

A: The given values are, t12=5.7 yr=5.7 yr365 days1 yr24 hr1 day3600 s1 hr=1.797552×108 sm=2.54…

Q: The half-life of 23U is 4.5 x 10° yr. A sample of rock of mass 1.6 g produces 29 dis/s. Assuming all…

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Q: plece of charcoal ised for cooking is found ancient campsite. A 1.00 kg sample of carbon from the…

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Q: A 25g piece of charcoal is discovered in a prehistoric cave. Carbon 14 of the sample shows a…

A: in this question we have to find year of trees by their samples of carbon . with help of radio…

Q: Q4: - The radioactive isotope Au has a half-life of 64.8 h. A sample containing this isotope has an…

A: Half life , T1/2 = 64.8h Initial Activity , R0 = 40 μCi . To find = Number of nuclei that will decay…

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

A: The activity of the sample is defined as the number of decays per second. Higher activity implies a…

Q: The technique of carbon-14 dating relies on the assumption that the cosmi-ray intensity has been…

A: The carbon- 14 isotope has 8 neutrons and 6 protons and it is used for the purpose of dating…

Q: Tritium has a half-life of 12.33 years. What fraction of the nuclei in a tritium sample will remain…

A:

Half Life

The concept of Half Life has numerous practical applications some of them includes figuring out the effective drug dosage to finding out when a radioactive becomes safe to use. If you look for a career in Nuclear Physics you will need this concept.