A moon rock collected by a U.S. Apollo mission is estimated to be 4.00 billion years old by uranium/lead dating. Assuming that the rock did not contain any lead when it was formed, what is the current mass of Pb206 in the rock, if it currently contains 1.370 g of U238? The half-life of U238 is 4.47×10^9 years

Q: If the mass of one neutron is 1.00867 amu, the mass of one proton is 1.00728 amu, and the mass of…

A: We know that binding energy= ∆m×c2  ∆m= theoritical mass-actual mass, c= 3×108m/s Theoritical mass =…

Q: nuclide 22086X decays to a new nuclide Y by emission of two alpha particles and two beta particles.…

A: In alpha decay atomic mass decreased by 4 while atomic number decreased by 2 ,it is also known as…

Q: In addition to C-14, K-40 is often used for archeological dating. K-40 decays to Ar- 40 by positron…

A: The rate of radioactive decay has been proven to be of first order kinetics. Using the understanding…

Q: The half-life for the alpha decay of 226Ra to form 222Rn is 1.60×10 y. Suppose the energy of the…

A: Solution           Hence the temperature of water 23.79 c

Q: Barium-142 is an beta emitter with a half-life of 11.0 min. If we start with 2.500 g of 142Ba, what…

A: The number of half-lives (n) can be calculated as

Q: The nuclide 241Am is used in smoke detectors. As it decays (with a half-life of 458 years), the…

A: Radioactive decay follows the first order kinetics and every radioisotope has distinct…

Q: The naturally occurring isotope rubidium-87 decays by beta emission to strontium-87. This decay is…

A: Amount of rubidium = 123.0  μg  Amount of strontium = 5.5 μg Half life time of rubidium = 4.8 × 1010…

Q: The radioactive nucleus 24Na undergoes β– decay with a half-life of 15.0 hours. A) Determine the…

A: The process of radioactive decay takes place in that element in which unstable nuclei is present.…

Q: The radioactive isotope Cs decays by beta emission. If the mass of a sample of cesium-137 decays…

A: Here we are required to find the half life of caesium-137 .

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: Consider the I-131 nucleus that is used to treat thyroid. Mass of I-131 is 130.78302 amu. Answer the…

A: The amount of energy released during the fission of I-131 nucleus to give Rb-89 and S-38 is needed…

Q: Bi-191 has a half-life of only about 12 seconds. A large radioactive sample contains only 6.2 x 109…

A: Half life of Bi-191 = 12 sNumber of atoms of Bi-191 = 6.2 x 109 atomsNumber of moles of Bi-191 = ?…

Q: A rock constains Pb-206 to U-238 mass ratio of 0.245: 1.00. Assuming the rock did not contain any…

A:

Q: CHEMWORK Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 x 1010 years.…

A:

Q: Mr. Albedo stumbled upon an unknown material in an abandoned laboratory. He believes that this…

A:

Q: Iodine-131, in a sodium iodide tablet, is used to measure the activity of the thyroid gland. If a…

A: Nuclear chemistry is a branch of chemistry which involved the study of reactions in the nucleus. The…

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 4.4 g remain. What is the original…

A: The Answer to the following question is-

Q: Carbon -14 has a half-life of 5.730 x 10 3 years.  If the original mass of the parent is 501.695 g,…

A:

Q: A rock contains 0.232 g of Pb-206 to every 1.00 g of U-238. Determine the age of this rock assuming…

A:

Q: 233Np decays by a-particle emission and has a half-life of 2.20 × 10 years. (1 Ci= 3.70 × 10¹0 3.70…

A: mass of sample = 0.230 ghalf-life of Np(t1/2) = 2.20106 yearsMolar mass of Np = 237 g/mol1 Ci =…

Q: Nickel-63 undergoes beta decay to form copper-63. At time = 0, a closed vial contains 55.3 grams of…

A: The radioactive decay follows first order kinetics.The integrated rate law for the first order…

Q: The neutron-induced fission of U-235 produces Ba-140 and Kr-93, along with 3 neutrons. Use the…

A: Given: neutron-induced fission of U-235 produces Ba-140 and Kr-93, along with 3 neutrons. And the…

Q: It is found that 2.0 x 10-5 mol 222Rn (t1/2 = 3.82 d, atom mass = 222) has seeped into a closed…

A:

Q: A moon rock collected by a U.S. Apollo mission is estimated to be 3.80 billion years old by…

A:

Q: 32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 62.7 g of 32P, how…

A:

Q: A sample of rock was found to contain 4.43 x 105 mol of 40K and 2.51 x 105 mol of 40 Ar. If we…

A: The provided infomration Number of moles of K40 = 4.43 × 10-5Number of moles of Ar40 = 2.51 ×…

Q: A rock was dated using Carbon-14 (half life = 5730 years). If the percentage of the parent atoms…

A: Given data contains, Half-life of C-14 is 5730 years. Percentage of parent atoms is 12.5%. N0 is…

Q: Gold-198, a B emitter used to treat leukemia, has a half-life of 2.695 days. The standard dosage is…

A: Given, Half life of gold-198 = 2.695 days

Q: Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 5.27 years. How…

A: Given Half life ( t1/2 )   = 5.27 year  Initial Activity ( A0 )  = 100 %  Remaining amount ( At ) =…

Q: In the next step of the neptunium-237 decay series, very unstable francium-221 is produced.  Given…

A: We know that the radioactive decay follow first order reaction.

Q: A radioactive substance has a half life of 120 years. If you have a 545 g sample of the substance,…

A:

Q: Cobalt-60 is used extensively in medicine as a source of g-rays. Its half-life is 3.97 years. How…

A: Given: Half-life of Co-60 = 3.97 years = 3.97 × 365 = 1449.05 days…

Q: A common fusion reaction is the combination of deuterium and tritium to produce helium in the…

A: During the nuclear reaction, energy produced is equal to the product of mass defect and square of…

Q: The half-life for the alpha decay of 226Ra to form 222Rn is 1.60×10 y. Suppose the energy of the…

A:

Q: What is the balanced nuclear reactions for the fission of uranium-235 to produce cesium-137 and…

A: In fission type of nuclear reaction one unstable nucleus is bombarded with a neutron , which results…

Q: phosphorus-32 is a radioactive isotope with a half-life of 14.3 days.14.3 days. If you currently…

A:

Q: ty due to the radioactive decay of the carbon-14 in a tiny sample of an artifact made of wood from…

A: Answer: the half life carbon -14 is = 5.73 × 103 years.  Activity of the sample in initial( Ao)=…

Q: The Cs-131 nuclide has a half-life of 30 years. After 120 years, 3.3 g remain. What is the original…

A: Answer

Q: Gallium-67 is used medically in tumor-seeking agents. The half-life of gallium-67 is 78.2 hours. If…

A: Gallium - 67 has a half-life of 78.2 hours. Initially 36.7 mg of Gallium - 67 were present.   Here,…

Q: 32p is a radioactive isotope with a half-life of 14.3 days. If you currently have 32.7 g of 32P, how…

A:

Q: Q2(B). Prove that it would take 17.6 years if an old sample of 10 g Co-60 with a half-life of 5.3…

A: We know nuclear decay is first order reaction. So we need to use first order rate equation. We also…

Q: 32P is a radioactive isotope with a half-life of 14.3 days. If you currently have 77.1 g of ³2P, how…

A:

Q: A geologist finds an old rock and wants to determine its age using rubidium-strontium dating. This…

A: Given: Half-life of isotope = 4.75 × 1010 years. And the ratio of 87Sr to 87Rb = 0.15

Q: In another process in which 235-92 U undergoes neutron bombardment, the following reaction occurs:…

A: The given reactio is :

Q: Radium-226 (atomic mass - 226.03), the only naturally occurring isotope of this element, follows the…

A: Since the half-life of the 2nd and 3rd decay are very small in comparison to the 1st one, the 2nd…

Q: Rubidium-87 decays by B production to strontium-87 with a half life of 4.7 × 1010 years. What is the…

A:

Q: One potential uranium fission reaction is shown below. 235U + n → 144Cs + 90Rb + 2 n [Atomic and…

A: The correct solution is given below

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.