Complete the following equations with the correct particles and identify the mode of decay. (a) '0→ 'N + (b) 1K → ? + -iß + ū (c) 1K + ?- Ar + v

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

A: Co-60 is used medically for radiation therapy as implants and as an external source of radiation…

Q: A patient receives 9.0 ng of a radioisotope with a halflife of 12 h. How much will remain in the…

A: Radioactive elements are those which undergoes the spontaneous reactions (may be fusion or fission)…

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

A:

Q: A piece of a spear handle is found in an archaeological dig in Central America. It contains 42.1% as…

A: Given: Amount of isotope in handle = 42.1 % of a living tree. And the half-life of the isotope…

Q: In a treatment that decreases pain and reduces inflammation of the lining of the knee joint, a…

A: Initial count (No) = 1100 per second Final count (Nt) = 1.14 per second Time (t) = 24 hours

Q: A hospital patient receives a dose of Technicium-99m with a mass of 0.050mg. Given that the…

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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: An old piece of wood has a carbon-14 content of 0.0156 times that 14 is the age of the old wood if…

A: We will use first order kinetics formula

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

A:

Q: An ancient skull has a carbon-14 decay rate of 0.85 disintegration per minute per gram of carbon…

A: It's a nuclear decay reaction. Therefore, it will follow first order kinetics. And since it is…

Q: Write an exponential equation describing the amount of radioactive material present at any time t…

A:

Q: 40K decays to 40Ar with a half life of 1.27x10^9 years. What is the age of a rock in which the…

A: Recall the expression of remaining amount due to radioactive disintegration Remaining amountA=A∘2nSo…

Q: 15. A mammoth skeleton has a carbon-14 decay rate of 0.48 disintegrations per minute per gram (0.48…

A:

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 mammoth skeleton has a carbon-14 decay rate of 0.48disintegrations per minute per gram of carbon…

A: Radioactive disintegration follows first order reaction and decay rate equation can expressed as,…

Q: The initial amount of the radioactive material V in a rock is determined to be 6.78 mg. Only 1.46 mg…

A: final answer is = 5.3200 mg

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: .6. A sample of (_16^35)S, a ß- emitter, has an activity of 0.100 µCi. In 20.0 days, the activity of…

A: The rate of the reaction is referred to the change in the molar concentration in the distinct…

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

A:

Q: 7. 1³N decays to 1³C via B+decay. If the total energy difference between the two atoms is2.22 MeV,…

A: Beta+ is also known as positron. It has +1 charge and negligible mass.

Q: If a mineral contains 1.56 % of its parent isotope, how many half-lives have gone?

A: Half Life Real analysis by the simple Concentration Analysis is mentioned in step-2  1st order…

Q: If the atomic mass of ⁵⁶Fe is 55.9349 amu, calculate the binding energy for the nucleus of one ⁵⁶Fe,…

A: Binding energy for the nucleus is given by E=Z×mp+N×mn-M where Z is the atomic number and N is the…

Q: How many half-lives have passed in each of the following situations? (a) Initially the sample is…

A: SOLUTION: Step 1: (a). Half-life is the interval of time required for one-half of the atomic nuclei…

Q: A piece of charcoal from a tree killed by the volcanic eruption that formed the crater in Crater…

A: The radioactive decay follows first-order kinetics. We know that the half-life of carbon-14 is 5730…

Q: A wooden artifact is subjected to radiocarbon dating. The activity associated with its 14C content…

A: Since the decay reactions are first order reactions. Hence the relationship between the activity and…

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

A: Given, The half life of 14C is 5715 yr. Activity of 14C is 11.6 disintegration per second Activity…

Q: Some mammoth bones found in Arizona were found by carbon-14 dating to be 1.13 x 10 4 y old. What…

A: The formula for decay of radioactive material is Nt = No (1/2)t/t1/2 where, Nt = number of…

Q: 20. At the time an item was produced, 0.01 of the carbon it contained was carbon-14, a radioisotope…

A: Solution

Q: The mass percent of carbon in a typical human is 18%, and the mass percent of 14C in natural carbon…

A: Given that: Mass % of carbon in humans = 18 % Mass % of 14C in natural carbon = 1.6 ×10-10 mas of…

Q: Phosphorus-32, 32P, is a radioactive isotope used in the treatment of leukemia. The half-life of $2P…

A: Radioactive decay of element is first order kinetics , in which half life of molecule is independent…

Q: A sample of uranium ore emits α radiation characteristic of 235U at a rate of 9.3X105 decays/s. What…

A: The expression of average life time is shown below: where; t1/2 = half life time = average life…

Q: Neptunium-237 has a half-life of 2.1 million years. The amount N of 400 kilograms of neptunium-237…

A: Exponential decay According to decay law, it calculates the amount of undecayed nuclei in a…

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: If one-trillionth of the atoms of a radioactive isotope disin-tegrate each day, what is the decay…

A: One trillionth of radioactive isotope decay takes place in a day. I trillion = 1.0 x 1012  The…

Q: The half-life of Carbon14 is 5730years. The carbon 14 activity of the living thing material is…

A: Given: Initial activity of carbon = 920 decays/hr.g of C. Final activity of carbon in sample = 680…

Q: A substance X initially weights 56 grams. After 6 minutes, it was observed that its mass decreased…

A: Mass at starting (t=0) = 56 grams Mass after 6 min = (56-12) g                                = 44 g…

Q: Strontium-89 has a half-life of 84 days. (a) Explain the meaning of the underlined phrase. (b) A…

A: a) Half-life of 84 days means it will take 84 days for Strontium-89 to reduce to 1/2 of its initial…

Q: All the disintegrations of a sample of an unknown nuclide weighing 4.6 x 10-2 g were counted. In the…

A:

Q: (i) Define the term 'neutron reproduction constant' koo as applied to an infinite thermal fission…

A: •NEUTRON REPRODUCTION CONSTANT (k∞):-"It is defined as ratio of number of neutron produced from…

Q: An ancient skull has a carbon-14 decay rate of 0.85 disintegrations per minute per gram of carbon…

A: An ancient skull has a carbon-14 decay rate of 0.85 disintegrations per minute per gram of carbon…

Q: Which of the following describe(s) the following reaction? Choose all that apply. 23U + on ORb + 144…

A:

Q: The atomic masses of nitrogen-14, titanium-48, and xenon-129 are 13.999234 amu, 47.935878 amu, and…

A: We have to calculate the nuclear binding energy. when Binding energy for a nucleus divided by the…

Q: If the half-life of a 2.0 gram sample of a radionuclide is 15 hours, then the half-life of a 1.0…

A: Given: Initial mass of sample = 2.0 g. Half-life of sample = 15 hours. And final mass of sample =…

Q: 38.)In a cyclotron facility, 106 atoms of F-18 were created. The half-life of F-18 is 110 minutes.…

A:

Q: A mammoth skeleton has a carbon-14 decay rate of 0.48 disintegrations per minute per gram of carbon…

A: Given,Carbon-14 decay rate of 0.48 dis / min · g CCarbon-14 decay rate of 15.3 dis / min · g C

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

A: Since the decay reactions are first order reactions And we know that the relationship between the…

Q: Os-182 has a half-life of 21.5 hours. How many grams of a 10.0 gram sample would have decayed after…

A:

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".