Conceptual Integrated Science
3rd Edition
ISBN: 9780135197394
Author: Hewitt, Paul G., LYONS, Suzanne, (science Teacher), Suchocki, John, Yeh, Jennifer (jennifer Jean)
Publisher: PEARSON EDUCATION (COLLEGE)
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Chapter 10, Problem 4RCQ
To determine
To find:
The type of nuclei which has more neutrons than protons.
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Check out a sample textbook solutionChapter 10 Solutions
Conceptual Integrated Science
Ch. 10 - Prob. 1RCQCh. 10 - Prob. 2RCQCh. 10 - Prob. 3RCQCh. 10 - Prob. 4RCQCh. 10 - What role do neutrons play in the atomic nucleus?Ch. 10 - Prob. 6RCQCh. 10 - Prob. 7RCQCh. 10 - What is the long-range fate of all the uranium...Ch. 10 - What is meant by the half-life of a radioactive...Ch. 10 - What is the half-life of uranium-238?
Ch. 10 - Prob. 11RCQCh. 10 - Prob. 12RCQCh. 10 - Prob. 13RCQCh. 10 - Prob. 14RCQCh. 10 - Prob. 15RCQCh. 10 - How does the mass per nucleons in uranium compare...Ch. 10 - What is the origin of the most of the natural...Ch. 10 - Prob. 18TISCh. 10 - Is radioactivity on Earth something relatively...Ch. 10 - What happens to a nitrogen atom in the atmosphere...Ch. 10 - Prob. 21TISCh. 10 - Why is lead found in all deposits of uranium ores?Ch. 10 - How does the mass of a pair of atoms that have...Ch. 10 - Prob. 24TISCh. 10 - What kind of nuclear power is responsible for...Ch. 10 - Rank these three types of radiation by their...Ch. 10 - Consider the atoms C-12, C-14, and N-14. From...Ch. 10 - Rank these isotopes in order of their...Ch. 10 - Rank the following in order from the most energy...Ch. 10 - Prob. 34TSCh. 10 - Consider a radioactive sample with a half-life of...Ch. 10 - A radioisotope is placed near a radiation...Ch. 10 - Uranium-238 absorbs a neutron and then emits a...Ch. 10 - The formula for the half-life can be expressed as...Ch. 10 - The formula for the half-life can be expressed as...Ch. 10 - Prob. 40TSCh. 10 - Why is it both impractical and impossible to...Ch. 10 - Prob. 42TECh. 10 - Prob. 43TECh. 10 - Prob. 44TECh. 10 - Prob. 45TECh. 10 - Prob. 46TECh. 10 - Prob. 47TECh. 10 - Prob. 48TECh. 10 - Prob. 49TECh. 10 - Prob. 50TECh. 10 - Prob. 51TECh. 10 - Prob. 52TECh. 10 - How is the rate of transmutation related to...Ch. 10 - Why is lead found in all deposits of uranium ores?Ch. 10 - Prob. 55TECh. 10 - Elements heavier than uranium in the periodic...Ch. 10 - If you make an account of 1000 people born in the...Ch. 10 - How does radioactivity allow archeologists to...Ch. 10 - What does the proportion of lead and uranium in...Ch. 10 - Radium-226 is a common isotope on Earth, but it...Ch. 10 - Prob. 61TECh. 10 - Prob. 62TECh. 10 - Prob. 63TECh. 10 - Prob. 64TECh. 10 - Name three fissionable isotopes.Ch. 10 - Prob. 66TECh. 10 - Prob. 67TECh. 10 - Why is carbon better than lead as a moderator in...Ch. 10 - Prob. 69TECh. 10 - Prob. 70TECh. 10 - Prob. 71TECh. 10 - Prob. 72TECh. 10 - Prob. 73TECh. 10 - Prob. 74TECh. 10 - Prob. 75TECh. 10 - How does the mass per nucleon in uranium compare...Ch. 10 - Prob. 77TECh. 10 - Prob. 78TECh. 10 - Prob. 79TECh. 10 - Prob. 80TECh. 10 - How does the energy of the gasoline come from...Ch. 10 - Prob. 82TECh. 10 - Prob. 83TECh. 10 - Prob. 84TECh. 10 - Prob. 85TECh. 10 - Prob. 86TECh. 10 - Prob. 87TECh. 10 - Prob. 88TECh. 10 - Prob. 89TECh. 10 - Prob. 90TECh. 10 - Prob. 91TDICh. 10 - The 1986 accident at the Chernobyl, in which...Ch. 10 - Your friend Paul says that the helium used to...Ch. 10 - Prob. 94TDICh. 10 - Prob. 95TDICh. 10 - Prob. 96TDICh. 10 - Prob. 1RATCh. 10 - Prob. 2RATCh. 10 - A sample of radioactive material is usually a...Ch. 10 - What evidence supports the contention that the...Ch. 10 - When the isotope bismuth-213 emits an alpha...Ch. 10 - Prob. 6RATCh. 10 - Prob. 7RATCh. 10 - Prob. 8RATCh. 10 - Prob. 9RATCh. 10 - If an iron nucleus split in two, its fission...
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- Why is the number of neutrons greater than the number of protons in stable nuclei that have an A greater than about 40? Why is this effect more pronounced for the heaviest nuclei?arrow_forwardSuppose you have a pure radioactive material with a half-life of T1/2. You begin with N0 undecayed nuclei of the material at t = 0. At t=12T1/2, how many of the nuclei have decayed? (a) 14N0 (b) 12N0(C) 34N0 (d) 0.707N0 (e) 0.293N0arrow_forwardWhy is the number of neutrons greater than the number of protons in stable nuclei having A greater than about 40, and why is this effect more pronounced for the heaviest nuclei?arrow_forward
- (a) Write the complete decay equation for 90Sr, a major waste product of nuclear reactors, (b) Find the energy released in the decay.arrow_forwardA large power reactor that has been in operation for some months is tinned off, but residual activity in the core still produces 150 MW of power. If the average energy per decay of the fission products is 1.00 MeV, what is the core activity?arrow_forwardIf two nuclei are to fuse in a nuclear reaction, they must be moving fast enough so that the repulsive Coulomb force between them does not prevent them for getting within R1014mof one another. At this distance or nearer, the attractive nuclear force can overcome the Coulomb force, and the nuclei are able to fuse. (a) Find a simple formula that can be used to estimate the minimum kinetic energy the nuclei must have if they are to fuse. To keep the calculation simple, assume the two nuclei are identical and moving toward one another with the same speed v. (b) Use this minimum kinetic energy to estimate the minimum temperature a gas of the nuclei must have before a significant number of them will undergo fusion. Calculate this minimum temperature first for hydrogen and then for helium. (Hint: For fusion to occur, the minimum kinetic energy when the nuclei are far apart must be equal to the Coulomb potential energy when they are a distance R apart.)arrow_forward
- (a) Write the complete decay equation for 90Sr, a major waste product of nuclear reactors. (b) Find the energy released in the decay.arrow_forwardWhy does the fusion of light nuclei into heavier nuclei release energy?arrow_forward(a) Calculate the energy released in the a decay of 238U . (b) What fraction of the mass of a single 238U is destroyed in the decay? The mass of 234Th is 234.043593 u. (c) Although the fractional mass loss is large for a single nucleus, it is difficult to observe for an entire macroscopic sample of uranium. Why is this?arrow_forward
- (a) Calculate BE/A for 235U, the rarer of the two most common uranium isotopes. (b) Calculate BE/A for 238U. (Most of uranium is 238U.) Note that 238U has even numbers at both protons and neutrons. Is the BE/A of 238U significantly different from that of 235U?arrow_forwardIntegrated Concepts Estimate the density of a nucleus by calculating the density of a proton, taking it to be a sphere 1.2 fm in diameter. Compare your result with the value estimated in this chapter.arrow_forwardIn the following eight problems, write the complete decay equation for the given nuclide in the complete XZAN notation. Refer to the periodic table for values of Z. + decay of 50Mn.arrow_forward
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