What is the age of mummified primate skin that contains 8.25% of the original quantity of 14C?

Q: Carbon Dating: Carbon-14 commonly used for dating historical artifacts, is a radioactive isotope…

A: Radioactive decay follows first order kinetics.  We know that k = 0.693/t(0.5) ...(1) k = rate…

Q: Isotopes X goes through a BETA decay and becomes isotape Y. isotape Y goes through an ALPHA decay…

A: The different types of radioactive decay are as follows; α-decay               ⇒             XZA  →…

Q: Iodine-123 is used for imaging the thyroid gland and decays at a rate of 0.0522 hr-1. If 40 mg of…

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Q: A sample of an isotope decayed to 84.1% of its original amount after one year. What is the half-life…

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Q: A sample of organic origin was tested to determine its approximate age. About 63%of its C-14 had…

A: We have to predict the age of sample.

Q: The age of a fossil with 87% of the original radioactive C-14 (k=1.2x10-4 yr-1) is   37,000 yr…

A: Given data,k=1.2×10-4yr-1Let the initial concentration be 100therefore,Final concentration=87

Q: What is meant by a chain reaction?

A: Answer Nuclear fission reaction proceed by chain reaction

Q: certain radioactive substance decays at a rate of 15% each year. By what percentage does it decay…

A: Given- Rate of decay =15%

Q: Kindly complete the following nuclear reactions. asap please

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is…

Q: Which of the following statements is NOT true? In adults, 95% of lead body burden is found in bones…

A: Medicinal chemistry

Q: 1. A 20 mg sample of a pesticide has a half-life to 25 years. How long would it take to reduce the…

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Q: A certain radioactive substance has a half-life of 50 hours, that is, half of the original quantity…

A: The given data contains, half-life = 50 hours.

Q: For a radioisotope where k=1.5x10-4yr-1, how old is a sample when only 10% remains? 15,000 years…

A: The details solution for this is provided below in attach image.

Q: When reactor 4 at the Chernobyl Nuclear Power Station in Ukraine exploded at 1:23 p.m. on April 26,…

A: Thyroid gland is an endocrine gland producing the thyroid hormones. The thyroid hormones are…

Q: Many scientists believe that large asteroid struck the earth that kill off dinosaurs. Fragment of…

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Q: Two-thirds of the radioactive potassium (K-40) originally contained in a certain volcanic rock has…

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Q: Describe what is meant by the term chain reaction.

A: The term chain reaction has to be defined.

Q: Using a C-14 isotope, how many half-lives could have passed if a fossil is approximately 19, 080…

A: Given, Age of fossil = 19,080 yr

Q: 19) What is the amount of starting material when 0.25-g remain and the number of half-lives is 3.72

A: The amount of starting material is expressed by the relation, A=A02n where A is the amount of…

Q: Iodine-123 can be used as a tracer specific for the thyroid gland. If a thyroid is NOT overactive, a…

A: Iodine-123 is tracer used for tracing Iodine content in the thyroid gland. For this purpose,…

Q: A) A piece of charcoal that has one-half the radioactivity of a living tree died approximately 5,568…

A: Radioactive decay follows first order kinetics. It has the following relation between t1/2 and k: k…

Q: Arsenic-74 is a radioisotope used for locating brain tumors.  If t1/2 of arsenic-74 is 18 days, how…

A: We know t1/2=0.693÷k So t1/2=18days K=0.693÷18 K=2.303/t×log[A]o÷[A] 0.693÷18=2.303÷90×log(120)÷[A]…

Q: What is the age in years of mummified primate skin that contains 6.25% of the original quantity of…

A: We have to predict the age in years.

Q: Write a chemical equation for each of the following radioactive decay processes: c. potassium -40…

A: Electron Capture An alternate way for a nuclide to increase its neutron to proton ratio is by a…

Q: Which of the following chemical elements has the highest tendency to loss electrons? Al. Li. Mg.…

A: The correct answer is given below

Q: Nitrogen-13 has a biologic half-life of 2.84 minutes and emits positrons.    If a patient is…

A: Initial concentration of nitrogen-13 = 500.0 micrograms  Half- life = 2.84 minutes  Half-life means…

Q: A fossil is found to have a 14C level of 68.0% compared to living organisms. How old is the fossil?

A: Using first order kinetics formula we can determine age of fossil.

Q: Write the daughter nucleous product in the following nuclear processes:

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Q: A 50 gram sample of a radioisotope undergoes 2 half-lives.  How many grams would remain at the end?

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Q: The amount of carbon-14 present in animal bones after t years is given by - 0.00012t A bone contains…

A: Given: The amount of 14C present in the animal bone is calculated by the formula,…

Q: Complete the following nuclear reactions 14C6  =   ______ +    0e-1 _______ =  0e-1+  3He2 242Pu94 =…

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Q: the carbon in a fossil was found to contain 12.5%  C-14 relative to living organism. what is the age…

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Q: 17-20. Uranium-238 decays very slowly, with a half-life of 4.47 billion years. What percentage of a…

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Q: 28-18. You order a sample of Na,PO, containing the radioisotope phosphorus-32 (1,/2 14.3 days). If…

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Q: What is the estimated age of a material whose C-14 activity is only 30% that of living wood? (C-14…

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Q: Carbon extracted from an ancient skull contained only one-fifth as much 14C as carbon extracted from…

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Q: Which acts as storage of genetic information in cells? a. nucleic acids b. lipids c. proteins d.…

A: Nucleic acid contains of N containing bases such as Adenine, Guanine, Cytosine, Thymine and Uracil.…

Q: When 55Fe undergoes electron capture, what is the immediate nuclear product?     54Fe     55Mn…

A: Given: 55Fe To find: the immediate nuclear product when 55Fe undergoes electron capture.

Q: The concentration of carbon-14 in living plants is about 240 Bq/kg C. If a tree dies today, what…

A:

Q: phosphorus -32 decays to form sulfur -32. The half life of phosphorus -32 is 12 days. How much…

A: Given,Phosphorus-32 decays to form sulphur-32The amount of Phosphorus-32 initially present is 62…

Q: erage rate of disappearance of H2O2 over the time period from t-0s to t-61 sis found to be 507tvgwe…

A: Rate of reaction is change in concentration of products and reactants in given time interval. From…

Q: 1. Calcium is used to treat certain types of bone cancer. Write the beta decay sequence. 47/20 CA…

A: Beta-decay:  Here neutron in the nucleus decays into a proton and an electron and the electron is…

Q: Suppose an archaeologist has recently unearthed a set of short-faced bear bone fragments and…

A: Given: Bone fragment have lost 87.1 % of their original carbon-14 content. half-life of C-14 =5730…

Q: At a certain time, two radioactive sources R and S contain the same number of radioactive nuclei.…

A: Given  Half life of R , tR = 2 hr Half life of S , tS = 1 hr decay constant , k = 0.693/t1/2  rate…

Q: by absorbing an aipna par Complete the nuclear chemical equation below so that it describes this…

A: Given is, Al-27  transforms to P-30

Q: For the formation of silver-107 through electron capture, the silver is placed in the reactant side…

A: For the formation of silver-107 through electron capture, the silver is placed in the reactant side…

Q: 1. How much of a 100. gram sample of 19AU is left after 8.10 days?

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Q: The half Ufe of 131 I i 0.220 years. Hou much of a 500mg yample remains after 24 houre ?

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Q: the carbon in a human skull  in South America contained 25% c-14 relative to living orginisms. How…

A: Half life for C-14 is t1/2 = 5730 yearsBut t1/2  = ln 2 / k5730 = ln 2 / kk = 1.2096x10-4 year-1 The…