Some mammoth bones found in Arizona were found by carbon-14 dating to be 1.13 x 10 4 y old. What must have been the activity of the carbon-14 in the bones in dis/min/g? Assume the original activity was 15.3 dis/min/g.

Q: About 0.0117% of the 600 mg of potassium in a typi- cal banana is radioactive potassium-40. If 1.00…

A: Given: 1) Mass of potassium in a typical banana is radioactive 0.0117% of the 600 mg of…

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: How the specific activity of an isotope in an object is used to determine the object’s age

A: How the specific activity of an isotope in an object is used to determine the object’s age.

Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

A: The solution is as follows :

Q: A sample of wood from an Egyptian mummy case has a specific activity of 9.41 d/min-g. How old is the…

A: Solution: We know that --- for a sample of wood from an Egyptian mummy which is related to…

Q: . Suppose that an 85.0-g laboratory animal ingests 10.0 mg of a substance that contained 2.55% by…

A: Amount of Pu-239 ingested in animal = 2.55 % of 10 mg  Amount in mass =

Q: While exploring a coal mine, scientists found plant fossils which had been preserved by an…

A:

Q: The carbon-14 activity of an artifact from a burial site was 9.2 min'gl. The half-life of carbon-14…

A: The C-14 decay reactions are first order reactions. Since we know that the relationship between the…

Q: (Q121) Technetium-99 is an unstable isotope used in various medical procedures. Given a half life of…

A: Given: half life (t12)=8.01 hrsmass=1.41 ug To find: Activity in Ci

Q: Which of the following statements is true of nuclear stability? A The nuclear binding energy is…

A: The nuclear stability is depends on the mass defect. If the mass defect is more then the binding…

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: c- A freshly prepared sample of a certain radioactive isotope has an activity of 10 mCi. After an…

A:

Q: 18. What is the decay constant (in Ci/g) for a 5.25g sample of uranium-238 if it emits 1.25E6…

A: Rate of disintegration or the decay process follows the 1st order kinetics. Let us discuss the…

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

A: Given,  Mass of wooden artifact is = 21 g. The activity of the sample is = 152 dis/min. t1/2 for…

Q: a wooden object from the site of an ancient temple has a carbon-14 activity of 10 counts/min…

A:

Q: A wooden artifact is burned and found to contain 21 g of carbon. The C activity of the sample is 242…

A:

Q: 8. Patients with Graves disease have an overactive thyroid gland, and are commonly treated with…

A: Given the half-life of I-131, t1/2 = 8.0 days Initial activity, Ao = 9.9 mCi

Q: A mixed thorium decay product sample is separated into elements, yielding a 1.19mg sample of…

A: Actinium-225 is a radioactive substance with a half-life, t1/2 of 9.20 days. t1/2 = 9.20 days * 24…

Q: A nuclear technician was accidentally exposed to potassium-42 while doing brain scans for possible…

A: Given, Half life of potassium -42 = 12 hr activity of potassium -42 after 36 hr of exposure = 4.0 μC

Q: A small figure carved from wood, believed to predate the period of Roman occupation of the Middle…

A:

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: about how much would have been left after three half-lives? A parent isotope has a half-life of 500…

A: Note : As per guidelines we can answer only the first question   The time it takes for the…

Q: A wooden artifact from an ancient culture has a l“C activity of 38.0 counts per minute. A new piece…

A: Radioactive decay follow first order kinetics. The decay constant for a first order reaction is give…

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

A:

Q: An earthquake in the area of present-day San Francisco isto be dated by measuring the 14C activity…

A:

Q: Nuclear Binding Energy II Calculate the binding energy per nucleon for the nucleus. (Atomic masses:…

A: B.E per nucleon calculated as total B.E /Mass no.

Q: 2. Some mammoth bones found in Arizona were found by carbon-14 dating to be 1.13 x 10' y old. What…

A: t1/2 = 5730 y t = 1.13 X 104 y N0 = 15.3 dis/min/g N =?

Q: (A) The nuclear binding energy is directly proportional to nuclear stability. B The nuclear…

A: Energy required to seperate the nucleus constitute particles (proton,neutron ) are called as binding…

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

A: The solution is given below -

Q: A 65-kg person is accidentally exposed for 240 s to a 15-mCi source of beta radiation coming from a…

A: Data, 1 becquerels (Bq)=1  dis/s                     1 mCi=10-3Ci                        1…

Q: Some mammoth bones found in Arizona were found by carbon-14 dating to be 1.13x104 years old. What…

A: Given: Original activity = 15.3 disintegrations per minute per gram. Age of bones = 1.13 × 104…

Q: A piece of wood from an ancient artifact has a carbon-14 activity of 11.7 disintegrations per min.…

A: Decay reactions are first order reactions. Since we know that the relationship between the activity…

Q: some mammoth bones found in Arizona were found by Carbon-14 dating to be 1.113 x 1014 years old.…

A: We have The half-life of C14 is 5730 years t12=0.693k.......1 By rearranging the equation 1, we get…

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

A:

Q: 5.) A sample of bone has a specific activity of 5.22 disintegrations per minute per gram of carbon…

A: Given:

Q: A patient ingests 155 mg of I-131, a beta emitter with a half-life of 8.0 days. Assuming that none…

A: Half life, t ½ = 8 days= 691200 sDecay constant, k = 0.693/ t ½ = 0.693 /691200 s = 1 x 10-6 s-1.

Q: A sample of wood from an Egyptian mummy case has a specific activity of 4.71 d/min g. How old is the…

A:

Q: A sample of wood from a Thracian chariot found in an excavation in Bulgaria has a 14^ C activity of…

A: A numerical problem based on age of element, which is to be accomplished.

Q: A tiny piece of paper (produced from formerly living plant matter) taken from the Dead Sea Scrolls…

A: Radioactive disintegration follows first order kinetics. Hence, the rate of decay can be followed by…

Q: While exploring a coal mine, scientists found plant fossils which had been preserved by an…

A: Given: Amount of carbon-14 in fossil = 20 counts/min = Nf Amount of carbon-14 in living tissue = 160…

Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

A:

Q: A wooden artifact from a Chinese temple has a 14Cactivity of 30.7 counts per minute as compared with…

A: All radioactive elements undergo decay process by applying "first-order rate". The half-life…

Q: Explain what is meant by the half-life of a radioactive nuclide. Living wood has an activity of 16…

A: A radioactive nuclide is an atom that has excess nuclear energy, making the atom unstable.…

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: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

A:

Q: A sample of an alpha emitter having an activity of 0.18Ci is stored in a 25.0-mL sealed container at…

A: a) Given  activity = 0.18 Ci convert 0.18 Ci to decay/second using conversion factor  1 Ci = 3.7 x…

Q: 3. A sample of wood from an Egyptian mummy case taken from an archaeological site is subjected to…

A: Recall the following expression to find the age of wood which was used to make the case of Egyptian…

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

A:

Q: radiocarbon dated. Based on other clues, you think that the leather should be 2500 years old. What…

A:

Q: Carbon-14 has a half-life of 5730 yr. A living organism has an activity of 15.2 counts per minute…

A: 1) calculate what decimal fraction of C-14 will be remaining: 11 / 15.2 = 0.72 2) calculate…

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.